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BOSTON MARATHON 2026

David Chirgwin

Bib: 27339β€’M

MA

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0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M50-54)
#0 / 1868
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
29:20
3.11 mi
Rank: #24297
Start β†’ 5K
29:20 | 9:27/mi
10K
58:57
6.21 mi
Rank: #24484 (-187)
5K β†’ 10K
29:37 | 9:32/mi
15K
1:28:46
9.32 mi
Rank: #24553 (-69)
10K β†’ 15K
29:49 | 9:36/mi
20K
2:01:23
12.43 mi
Rank: #25033 (-480)
15K β†’ 20K
32:37 | 10:30/mi
HALF
2:08:08
13.11 mi
Rank: #25041 (-8)
20K β†’ HALF
6:45 | 9:55/mi
25K
2:36:07
15.53 mi
Rank: #25515 (-474)
HALF β†’ 25K
27:59 | 11:33/mi
30K
3:12:07
18.64 mi
Rank: #25693 (-178)
25K β†’ 30K
36:00 | 11:36/mi
20M
3:28:26
20.00 mi
Rank: #25789 (-96)
30K β†’ 20M
16:19 | 12:01/mi
21M
3:42:30
21.00 mi
Rank: #25944 (-155)
20M β†’ 21M
14:04 | 14:04/mi
35K
3:52:04
21.75 mi
Rank: #26062 (-118)
21M β†’ 35K
9:34 | 12:48/mi
23M
4:06:28
23.00 mi
Rank: #26034 (+28)
35K β†’ 23M
14:24 | 11:31/mi
24M
4:18:34
24.00 mi
Rank: #26085 (-51)
23M β†’ 24M
12:06 | 12:06/mi
40K
4:30:11
24.85 mi
Rank: #26182 (-97)
24M β†’ 40K
11:37 | 13:36/mi
25.2M
4:34:28
25.20 mi
Rank: #26168 (+14)
40K β†’ 25.2M
4:17 | 12:26/mi
FINISH
4:46:38
26.22 mi
Rank: #26239 (-71)
25.2M β†’ FINISH
12:10 | 11:57/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:08:08
Pace9:47 /mi
2nd Half
Distance13.11 mi
Time2:38:30
Pace12:06 /mi
πŸ“ŠPositive Split: 23.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2629:209:2729:20
9:27
-
10K
6.21 mi12:20:0358:579:3029:37
9:32
+0:05
15K
9.32 mi12:49:521:28:469:3229:49
9:36
+0:04
20K
12.43 mi13:22:292:01:239:4732:37
10:30
+0:54
HALF
13.11 mi13:29:142:08:089:476:45
9:55
-0:35
25K
15.53 mi13:57:132:36:0710:0327:59
11:33
+1:38
30K
18.64 mi14:33:133:12:0710:1936:00
11:36
+0:03
20M
20.00 mi14:49:323:28:2610:2616:19
12:01
+0:25
21M
21.00 mi15:03:363:42:3010:3614:04
14:04
+2:03
35K
21.75 mi15:13:103:52:0410:419:34
12:48
-1:16
23M
23.00 mi15:27:344:06:2810:4314:24
11:31
-1:17
24M
24.00 mi15:39:404:18:3410:4712:06
12:06
+0:35
40K
24.85 mi15:51:174:30:1110:5311:37
13:36
+1:30
25.2M
25.20 mi15:55:344:34:2810:544:17
12:26
-1:10
FINISH
26.22 mi16:07:444:46:3810:5712:10
11:57
-0:29

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

9:27 /mi

Average Pace

10:56 /mi

Slowest Pace

14:04 /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

2:08:08

45% of race

Time at Steady Pace

1:58:58

42% of race

Time at Slower Pace

39:32

14% of race

Average Pace: 10:56 /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 mi11:50:2629:209:2729:20
9:27
#24297
10K
6.21 mi12:20:0358:579:3029:37
9:32
#24484
15K
9.32 mi12:49:521:28:469:3229:49
9:36
#24553
20K
12.43 mi13:22:292:01:239:4732:37
10:30
#25033
HALF
13.11 mi13:29:142:08:089:476:45
9:55
#25041
25K
15.53 mi13:57:132:36:0710:0327:59
11:33
#25515
30K
18.64 mi14:33:133:12:0710:1936:00
11:36
#25693
20M
20.00 mi14:49:323:28:2610:2616:19
12:01
#25789
21M
21.00 mi15:03:363:42:3010:3614:04
14:04
#25944
35K
21.75 mi15:13:103:52:0410:419:34
12:48
#26062
23M
23.00 mi15:27:344:06:2810:4314:24
11:31
#26034
24M
24.00 mi15:39:404:18:3410:4712:06
12:06
#26085
40K
24.85 mi15:51:174:30:1110:5311:37
13:36
#26182
25.2M
25.20 mi15:55:344:34:2810:544:17
12:26
#26168
FINISH
26.22 mi16:07:444:46:3810:5712:10
11:57
#26239
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi24297143831438324688(Top 85%)14575(Top 89%)14575(Top 780%)
10K6.21 mi3.10 mi24484-18714479-9614479-9624667(Top 85%)14562(Top 89%)14562(Top 780%)
15K9.32 mi3.11 mi24553-6914517-3814517-3824688(Top 85%)14575(Top 89%)14575(Top 780%)
20K12.43 mi3.11 mi25033-48014736-21914736-21926116(Top 90%)15208(Top 93%)15208(Top 814%)
HALF13.11 mi0.68 mi25041-814735+114735+125429(Top 88%)14892(Top 91%)14892(Top 797%)
25K15.53 mi2.42 mi25515-47414956-22114956-22127055(Top 93%)15556(Top 95%)15556(Top 833%)
30K18.64 mi3.11 mi25693-17815001-4515001-4526230(Top 90%)15107(Top 92%)15107(Top 809%)
20M20.00 mi1.36 mi25789-9615026-2515026-2526416(Top 91%)15120(Top 93%)15120(Top 809%)
21M21.00 mi1.00 mi25944-15515076-5015076-5027371(Top 94%)15536(Top 95%)15536(Top 832%)
35K21.75 mi0.75 mi26062-11815119-4315119-4327526(Top 95%)15602(Top 95%)15602(Top 835%)
23M23.00 mi1.25 mi26034+2815099+2015099+2025446(Top 88%)14558(Top 89%)14558(Top 779%)
24M24.00 mi1.00 mi26085-5115110-1115110-1126729(Top 92%)15151(Top 93%)15151(Top 811%)
40K24.85 mi0.85 mi26182-9715140-3015140-3027563(Top 95%)15568(Top 95%)15568(Top 833%)
25.2M25.20 mi0.35 mi26168+1415129+1115129+1125206(Top 87%)14392(Top 88%)14392(Top 770%)
FINISH26.22 mi1.02 mi26239-7115149-2015149-2027395(Top 94%)15478(Top 95%)15478(Top 829%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
Γ—21
+97ft-345ft

Overall

24688

Males

14575

M50-54

14575

5K→10K

3.1 - 6.2 mi

Top 85%
Γ—5
+79ft-138ft

Overall

24667

Males

14562

M50-54

14562

10K→15K

6.2 - 9.3 mi

Top 85%
Γ—3
+67ft-78ft

Overall

24688

Males

14575

M50-54

14575

15K→20K

9.3 - 12.4 mi

Top 90%
Γ—5
+106ft-86ft

Overall

26116

Males

15208

M50-54

15208

20K→HALF

12.4 - 13.1 mi

Top 88%
Γ—2
+19ft-37ft

Overall

25429

Males

14892

M50-54

14892

HALF→25K

13.1 - 15.5 mi

Top 93%
Γ—4
+66ft-88ft

Overall

27055

Males

15556

M50-54

15556

25K→30K

15.5 - 18.6 mi

Top 90%
Γ—9
+181ft-148ft

Overall

26230

Males

15107

M50-54

15107

30K→20M

18.6 - 20.0 mi

Top 91%
Γ—5
+64ft-50ft

Overall

26416

Males

15120

M50-54

15120

20M→21M

20.0 - 21.0 mi

Top 94%
Γ—8
+106ft-24ft

Overall

27371

Males

15536

M50-54

15536

21M→35K

21.0 - 21.8 mi

Top 95%
Γ—7
+17ft-86ft

Overall

27526

Males

15602

M50-54

15602

35K→23M

21.8 - 23.0 mi

Top 88%
Γ—5
+23ft-63ft

Overall

25446

Males

14558

M50-54

14558

23M→24M

23.0 - 24.0 mi

Top 92%
Γ—6
+12ft-82ft

Overall

26729

Males

15151

M50-54

15151

24M→40K

24.0 - 24.9 mi

Top 95%
Γ—1
+6ft-20ft

Overall

27563

Males

15568

M50-54

15568

40K→25.2M

24.9 - 25.2 mi

Top 87%
Γ—1
+13ft-16ft

Overall

25206

Males

14392

M50-54

14392

25.2M→FINISH

25.2 - 26.2 mi

Top 94%
Γ—2
+22ft-21ft

Overall

27395

Males

15478

M50-54

15478

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
592
Passed By
1727
Net Change
-1942
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#24297
5K β†’ 10K156200-187#24297#24484
10K β†’ 15K102171-69#24484#24553
15K β†’ 20K34200-480#24553#25033
20K β†’ HALF1624-8#25033#25041
HALF β†’ 25K11200-474#25041#25515
25K β†’ 30K87200-178#25515#25693
30K β†’ 20M36132-96#25693#25789
20M β†’ 21M20175-155#25789#25944
21M β†’ 35K6124-118#25944#26062
35K β†’ 23M6133+28#26062#26034
23M β†’ 24M2475-51#26034#26085
24M β†’ 40K9106-97#26085#26182
40K β†’ 25.2M184+14#26182#26168
25.2M β†’ FINISH1283-71#26168#26239
TOTALS5921727-1942
πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing