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BOSTON MARATHON 2026

Jim Clarke

Bib: 5425β€’M

UT

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 41%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Top 43%
Age Group (M45-49)
#0 / 2413
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
23:09
3.11 mi
Rank: #12356
Start β†’ 5K
23:09 | 7:28/mi
10K
46:06
6.21 mi
Rank: #12135 (+221)
5K β†’ 10K
22:57 | 7:24/mi
15K
1:08:54
9.32 mi
Rank: #11879 (+256)
10K β†’ 15K
22:48 | 7:21/mi
20K
1:31:50
12.43 mi
Rank: #11628 (+251)
15K β†’ 20K
22:56 | 7:23/mi
HALF
1:36:50
13.11 mi
Rank: #11618 (+10)
20K β†’ HALF
5:00 | 7:21/mi
25K
1:54:45
15.53 mi
Rank: #11446 (+172)
HALF β†’ 25K
17:55 | 7:24/mi
30K
2:18:32
18.64 mi
Rank: #11314 (+132)
25K β†’ 30K
23:47 | 7:40/mi
20M
2:29:14
20.00 mi
Rank: #11335 (-21)
30K β†’ 20M
10:42 | 7:53/mi
21M
2:37:27
21.00 mi
Rank: #11283 (+52)
20M β†’ 21M
8:13 | 8:13/mi
35K
2:43:29
21.75 mi
Rank: #11395 (-112)
21M β†’ 35K
6:02 | 8:04/mi
23M
2:53:40
23.00 mi
Rank: #11499 (-104)
35K β†’ 23M
10:11 | 8:09/mi
24M
3:01:44
24.00 mi
Rank: #11612 (-113)
23M β†’ 24M
8:04 | 8:04/mi
40K
3:08:49
24.85 mi
Rank: #11701 (-89)
24M β†’ 40K
7:05 | 8:18/mi
25.2M
3:11:56
25.20 mi
Rank: #11753 (-52)
40K β†’ 25.2M
3:07 | 9:03/mi
FINISH
3:20:04
26.22 mi
Rank: #11869 (-116)
25.2M β†’ FINISH
8:08 | 7:59/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:36:50
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:43:14
Pace7:53 /mi
πŸ“ŠPositive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1423:097:2823:09
7:28
-
10K
6.21 mi11:15:1146:067:2622:57
7:24
-0:04
15K
9.32 mi11:37:591:08:547:2422:48
7:21
-0:03
20K
12.43 mi12:00:551:31:507:2422:56
7:23
+0:02
HALF
13.11 mi12:05:551:36:507:245:00
7:21
-0:02
25K
15.53 mi12:23:501:54:457:2417:55
7:24
+0:03
30K
18.64 mi12:47:372:18:327:2623:47
7:40
+0:16
20M
20.00 mi12:58:192:29:147:2810:42
7:53
+0:13
21M
21.00 mi13:06:322:37:277:308:13
8:13
+0:20
35K
21.75 mi13:12:342:43:297:326:02
8:04
-0:09
23M
23.00 mi13:22:452:53:407:3410:11
8:09
+0:05
24M
24.00 mi13:30:493:01:447:358:04
8:04
-0:05
40K
24.85 mi13:37:543:08:497:367:05
8:18
+0:14
25.2M
25.20 mi13:41:013:11:567:373:07
9:03
+0:45
FINISH
26.22 mi13:49:093:20:047:398:08
7:59
-1:04

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

7:21 /mi

Average Pace

7:38 /mi

Slowest Pace

9:03 /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

1:54:45

57% of race

Time at Steady Pace

56:43

28% of race

Time at Slower Pace

28:36

14% of race

Average Pace: 7:38 /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 mi10:52:1423:097:2823:09
7:28
#12356
10K
6.21 mi11:15:1146:067:2622:57
7:24
#12135
15K
9.32 mi11:37:591:08:547:2422:48
7:21
#11879
20K
12.43 mi12:00:551:31:507:2422:56
7:23
#11628
HALF
13.11 mi12:05:551:36:507:245:00
7:21
#11618
25K
15.53 mi12:23:501:54:457:2417:55
7:24
#11446
30K
18.64 mi12:47:372:18:327:2623:47
7:40
#11314
20M
20.00 mi12:58:192:29:147:2810:42
7:53
#11335
21M
21.00 mi13:06:322:37:277:308:13
8:13
#11283
35K
21.75 mi13:12:342:43:297:326:02
8:04
#11395
23M
23.00 mi13:22:452:53:407:3410:11
8:09
#11499
24M
24.00 mi13:30:493:01:447:358:04
8:04
#11612
40K
24.85 mi13:37:543:08:497:367:05
8:18
#11701
25.2M
25.20 mi13:41:013:11:567:373:07
9:03
#11753
FINISH
26.22 mi13:49:093:20:047:398:08
7:59
#11869
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi123569187918711410(Top 39%)8676(Top 53%)8676(Top 360%)
10K6.21 mi3.10 mi12135+2219074+1139074+11311947(Top 41%)8967(Top 55%)8967(Top 372%)
15K9.32 mi3.11 mi11879+2568935+1398935+13911410(Top 39%)8676(Top 53%)8676(Top 360%)
20K12.43 mi3.11 mi11628+2518791+1448791+14410949(Top 38%)8361(Top 51%)8361(Top 346%)
HALF13.11 mi0.68 mi11618+108786+58786+511463(Top 39%)8694(Top 53%)8694(Top 360%)
25K15.53 mi2.42 mi11446+1728675+1118675+11110477(Top 36%)8071(Top 49%)8071(Top 334%)
30K18.64 mi3.11 mi11314+1328576+998576+9910886(Top 38%)8149(Top 50%)8149(Top 338%)
20M20.00 mi1.36 mi11335-218554+228554+2211899(Top 41%)8513(Top 52%)8513(Top 353%)
21M21.00 mi1.00 mi11283+528513+418513+4111288(Top 39%)8119(Top 50%)8119(Top 336%)
35K21.75 mi0.75 mi11395-1128561-488561-4814867(Top 51%)9681(Top 59%)9681(Top 401%)
23M23.00 mi1.25 mi11499-1048580-198580-1913365(Top 46%)8952(Top 55%)8952(Top 371%)
24M24.00 mi1.00 mi11612-1138598-188598-1814169(Top 49%)9223(Top 56%)9223(Top 382%)
40K24.85 mi0.85 mi11701-898607-98607-914320(Top 49%)9194(Top 56%)9194(Top 381%)
25.2M25.20 mi0.35 mi11753-528615-88615-814847(Top 51%)9407(Top 58%)9407(Top 390%)
FINISH26.22 mi1.02 mi11869-1168637-228637-2215018(Top 52%)9510(Top 58%)9510(Top 394%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
Γ—21
+97ft-345ft

Overall

11410

Males

8676

M45-49

8676

5K→10K

3.1 - 6.2 mi

Top 41%
Γ—5
+79ft-138ft

Overall

11947

Males

8967

M45-49

8967

10K→15K

6.2 - 9.3 mi

Top 39%
Γ—3
+67ft-78ft

Overall

11410

Males

8676

M45-49

8676

15K→20K

9.3 - 12.4 mi

Top 38%
Γ—5
+106ft-86ft

Overall

10949

Males

8361

M45-49

8361

20K→HALF

12.4 - 13.1 mi

Top 39%
Γ—2
+19ft-37ft

Overall

11463

Males

8694

M45-49

8694

HALF→25K

13.1 - 15.5 mi

Top 36%
Γ—4
+66ft-88ft

Overall

10477

Males

8071

M45-49

8071

25K→30K

15.5 - 18.6 mi

Top 38%
Γ—9
+181ft-148ft

Overall

10886

Males

8149

M45-49

8149

30K→20M

18.6 - 20.0 mi

Top 41%
Γ—5
+64ft-50ft

Overall

11899

Males

8513

M45-49

8513

20M→21M

20.0 - 21.0 mi

Top 39%
Γ—8
+106ft-24ft

Overall

11288

Males

8119

M45-49

8119

21M→35K

21.0 - 21.8 mi

Top 51%
Γ—7
+17ft-86ft

Overall

14867

Males

9681

M45-49

9681

35K→23M

21.8 - 23.0 mi

Top 46%
Γ—5
+23ft-63ft

Overall

13365

Males

8952

M45-49

8952

23M→24M

23.0 - 24.0 mi

Top 49%
Γ—6
+12ft-82ft

Overall

14169

Males

9223

M45-49

9223

24M→40K

24.0 - 24.9 mi

Top 49%
Γ—1
+6ft-20ft

Overall

14320

Males

9194

M45-49

9194

40K→25.2M

24.9 - 25.2 mi

Top 51%
Γ—1
+13ft-16ft

Overall

14847

Males

9407

M45-49

9407

25.2M→FINISH

25.2 - 26.2 mi

Top 52%
Γ—2
+22ft-21ft

Overall

15018

Males

9510

M45-49

9510

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1998
Passed By
1511
Net Change
+487
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#12356
5K β†’ 10K395174+221#12356#12135
10K β†’ 15K32569+256#12135#11879
15K β†’ 20K29847+251#11879#11628
20K β†’ HALF4030+10#11628#11618
HALF β†’ 25K20735+172#11618#11446
25K β†’ 30K255123+132#11446#11314
30K β†’ 20M87108-21#11314#11335
20M β†’ 21M11260+52#11335#11283
21M β†’ 35K35147-112#11283#11395
35K β†’ 23M65169-104#11395#11499
23M β†’ 24M52165-113#11499#11612
24M β†’ 40K60149-89#11612#11701
40K β†’ 25.2M1971-52#11701#11753
25.2M β†’ FINISH48164-116#11753#11869
TOTALS19981511+487
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