All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Jeff Dalzell

Bib: 25455β€’M

TN

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M70-74)
#0 / 281
Top 41%
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
33:07
3.11 mi
Rank: #27466
Start β†’ 5K
33:07 | 10:40/mi
10K
1:00:50
6.21 mi
Rank: #25332 (+2134)
5K β†’ 10K
27:43 | 8:56/mi
15K
1:34:11
9.32 mi
Rank: #26073 (-741)
10K β†’ 15K
33:21 | 10:45/mi
20K
2:03:13
12.43 mi
Rank: #25408 (+665)
15K β†’ 20K
29:02 | 9:21/mi
HALF
2:09:17
13.11 mi
Rank: #25275 (+133)
20K β†’ HALF
6:04 | 8:55/mi
25K
2:32:28
15.53 mi
Rank: #24952 (+323)
HALF β†’ 25K
23:11 | 9:34/mi
30K
3:02:47
18.64 mi
Rank: #24496 (+456)
25K β†’ 30K
30:19 | 9:46/mi
20M
3:15:20
20.00 mi
Rank: #24208 (+288)
30K β†’ 20M
12:33 | 9:15/mi
21M
3:25:12
21.00 mi
Rank: #23974 (+234)
20M β†’ 21M
9:52 | 9:52/mi
35K
3:31:55
21.75 mi
Rank: #23838 (+136)
21M β†’ 35K
6:43 | 8:59/mi
23M
3:43:22
23.00 mi
Rank: #23592 (+246)
35K β†’ 23M
11:27 | 9:09/mi
24M
3:52:21
24.00 mi
Rank: #23423 (+169)
23M β†’ 24M
8:59 | 8:59/mi
40K
4:00:04
24.85 mi
Rank: #23238 (+185)
24M β†’ 40K
7:43 | 9:02/mi
25.2M
4:03:21
25.20 mi
Rank: #23150 (+88)
40K β†’ 25.2M
3:17 | 9:32/mi
FINISH
4:12:05
26.22 mi
Rank: #23025 (+125)
25.2M β†’ FINISH
8:44 | 8:35/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time2:09:17
Pace9:52 /mi
2nd Halfβœ“ Faster
Distance13.11 mi
Time2:02:48
Pace9:23 /mi
πŸ“ŠNegative Split: 5.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:39:5333:0710:4033:07
10:40
-
10K
6.21 mi12:07:361:00:509:4827:43
8:56
-1:44
15K
9.32 mi12:40:571:34:1110:0733:21
10:45
+1:49
20K
12.43 mi13:09:592:03:139:5529:02
9:21
-1:24
HALF
13.11 mi13:16:032:09:179:526:04
8:55
-0:26
25K
15.53 mi13:39:142:32:289:4923:11
9:34
+0:39
30K
18.64 mi14:09:333:02:479:4930:19
9:46
+0:12
20M
20.00 mi14:22:063:15:209:4712:33
9:15
-0:31
21M
21.00 mi14:31:583:25:129:479:52
9:52
+0:37
35K
21.75 mi14:38:413:31:559:456:43
8:59
-0:53
23M
23.00 mi14:50:083:43:229:4311:27
9:09
+0:10
24M
24.00 mi14:59:073:52:219:418:59
8:59
-0:10
40K
24.85 mi15:06:504:00:049:407:43
9:02
+0:03
25.2M
25.20 mi15:10:074:03:219:403:17
9:32
+0:30
FINISH
26.22 mi15:18:514:12:059:388:44
8:35
-0:57

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:35 /mi

Average Pace

9:37 /mi

Slowest Pace

10:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

42:31

17% of race

Time at Steady Pace

1:19:44

32% of race

Time at Slower Pace

2:09:50

52% of race

Average Pace: 9:37 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:39:5333:0710:4033:07
10:40
#27466
10K
6.21 mi12:07:361:00:509:4827:43
8:56
#25332
15K
9.32 mi12:40:571:34:1110:0733:21
10:45
#26073
20K
12.43 mi13:09:592:03:139:5529:02
9:21
#25408
HALF
13.11 mi13:16:032:09:179:526:04
8:55
#25275
25K
15.53 mi13:39:142:32:289:4923:11
9:34
#24952
30K
18.64 mi14:09:333:02:479:4930:19
9:46
#24496
20M
20.00 mi14:22:063:15:209:4712:33
9:15
#24208
21M
21.00 mi14:31:583:25:129:479:52
9:52
#23974
35K
21.75 mi14:38:413:31:559:456:43
8:59
#23838
23M
23.00 mi14:50:083:43:229:4311:27
9:09
#23592
24M
24.00 mi14:59:073:52:219:418:59
8:59
#23423
40K
24.85 mi15:06:504:00:049:407:43
9:02
#23238
25.2M
25.20 mi15:10:074:03:219:403:17
9:32
#23150
FINISH
26.22 mi15:18:514:12:059:388:44
8:35
#23025
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi27466158211582127071(Top 93%)15630(Top 96%)15630(Top 5562%)
10K6.21 mi3.10 mi25332+213414886+93514886+93522491(Top 77%)13499(Top 83%)13499(Top 4804%)
15K9.32 mi3.11 mi26073-74115210-32415210-32427071(Top 93%)15630(Top 96%)15630(Top 5562%)
20K12.43 mi3.11 mi25408+66514912+29814912+29823270(Top 80%)13850(Top 85%)13850(Top 4929%)
HALF13.11 mi0.68 mi25275+13314843+6914843+6922272(Top 77%)13400(Top 82%)13400(Top 4769%)
25K15.53 mi2.42 mi24952+32314699+14414699+14423198(Top 80%)13801(Top 84%)13801(Top 4911%)
30K18.64 mi3.11 mi24496+45614448+25114448+25122441(Top 77%)13355(Top 82%)13355(Top 4753%)
20M20.00 mi1.36 mi24208+28814294+15414294+15420023(Top 69%)12123(Top 74%)12123(Top 4314%)
21M21.00 mi1.00 mi23974+23414172+12214172+12219974(Top 69%)12061(Top 74%)12061(Top 4292%)
35K21.75 mi0.75 mi23838+13614091+8114091+8119950(Top 69%)11972(Top 73%)11972(Top 4260%)
23M23.00 mi1.25 mi23592+24613951+14013951+14019188(Top 66%)11558(Top 71%)11558(Top 4113%)
24M24.00 mi1.00 mi23423+16913852+9913852+9919390(Top 67%)11609(Top 71%)11609(Top 4131%)
40K24.85 mi0.85 mi23238+18513744+10813744+10818528(Top 64%)11139(Top 68%)11139(Top 3964%)
25.2M25.20 mi0.35 mi23150+8813696+4813696+4817417(Top 60%)10641(Top 65%)10641(Top 3787%)
FINISH26.22 mi1.02 mi23025+12513629+6713629+6718530(Top 64%)11160(Top 68%)11160(Top 3972%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
Γ—21
+97ft-345ft

Overall

27071

Males

15630

M70-74

15630

5K→10K

3.1 - 6.2 mi

Top 77%
Γ—5
+79ft-138ft

Overall

22491

Males

13499

M70-74

13499

10K→15K

6.2 - 9.3 mi

Top 93%
Γ—3
+67ft-78ft

Overall

27071

Males

15630

M70-74

15630

15K→20K

9.3 - 12.4 mi

Top 80%
Γ—5
+106ft-86ft

Overall

23270

Males

13850

M70-74

13850

20K→HALF

12.4 - 13.1 mi

Top 77%
Γ—2
+19ft-37ft

Overall

22272

Males

13400

M70-74

13400

HALF→25K

13.1 - 15.5 mi

Top 80%
Γ—4
+66ft-88ft

Overall

23198

Males

13801

M70-74

13801

25K→30K

15.5 - 18.6 mi

Top 77%
Γ—9
+181ft-148ft

Overall

22441

Males

13355

M70-74

13355

30K→20M

18.6 - 20.0 mi

Top 69%
Γ—5
+64ft-50ft

Overall

20023

Males

12123

M70-74

12123

20M→21M

20.0 - 21.0 mi

Top 69%
Γ—8
+106ft-24ft

Overall

19974

Males

12061

M70-74

12061

21M→35K

21.0 - 21.8 mi

Top 69%
Γ—7
+17ft-86ft

Overall

19950

Males

11972

M70-74

11972

35K→23M

21.8 - 23.0 mi

Top 66%
Γ—5
+23ft-63ft

Overall

19188

Males

11558

M70-74

11558

23M→24M

23.0 - 24.0 mi

Top 67%
Γ—6
+12ft-82ft

Overall

19390

Males

11609

M70-74

11609

24M→40K

24.0 - 24.9 mi

Top 64%
Γ—1
+6ft-20ft

Overall

18528

Males

11139

M70-74

11139

40K→25.2M

24.9 - 25.2 mi

Top 60%
Γ—1
+13ft-16ft

Overall

17417

Males

10641

M70-74

10641

25.2M→FINISH

25.2 - 26.2 mi

Top 64%
Γ—2
+22ft-21ft

Overall

18530

Males

11160

M70-74

11160

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
5219
Passed By
778
Net Change
+4441
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#27466
5K β†’ 10K21373+2134#27466#25332
10K β†’ 15K12753-741#25332#26073
15K β†’ 20K6661+665#26073#25408
20K β†’ HALF1330+133#25408#25275
HALF β†’ 25K3263+323#25275#24952
25K β†’ 30K4593+456#24952#24496
30K β†’ 20M2891+288#24496#24208
20M β†’ 21M2373+234#24208#23974
21M β†’ 35K1371+136#23974#23838
35K β†’ 23M2493+246#23838#23592
23M β†’ 24M1690+169#23592#23423
24M β†’ 40K1872+185#23423#23238
40K β†’ 25.2M880+88#23238#23150
25.2M β†’ FINISH1305+125#23150#23025
TOTALS5219778+4441
πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

Loading...

🎨Heatmap Timeline

Loading...

πŸ”„Passing Circle

Loading...

🌊Position Flow

Loading...

πŸƒRace Lanes

Loading...

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing