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BOSTON MARATHON 2025

Jason Cook

Bib: 13527•M

AL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 46%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 49%
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:48/mi
24:14
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
48:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:58/mi
1:13:28
↑ 67↓ 78
20K· 12.43 mi
7:57/mi
1:38:09
↑ 106↓ 860.1%
Half· 13.11 mi
7:48/mi
1:43:28
↑ 19↓ 370.5%
25K· 15.53 mi
8:00/mi
2:02:52
↑ 66↓ 880.2%
30K· 18.64 mi
8:18/mi
2:28:39
↑ 181↓ 1480.2%
20M
8:17/mi
2:39:54
↑ 64↓ 500.2%
21M
8:34/mi
2:48:28
↑ 106↓ 241.6%
35K· 21.75 mi
8:03/mi
2:54:29
↑ 17↓ 861.7%
23M
8:02/mi
3:04:32
↑ 23↓ 630.6%
24M
7:48/mi
3:12:20
↓ 821.3%
40K· 24.85 mi
7:50/mi
3:19:02
↓ 200.3%
25.2M
8:25/mi
3:21:56
↑ 13↓ 160.2%
Finish· 26.22 mi
7:28/mi
3:29:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:28
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:46:05
Pace8:06 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:2924:147:4824:14
7:48
-
10K
6.21 mi11:19:5948:447:5124:30
7:53
+0:05
15K
9.32 mi11:44:431:13:287:5324:44
7:58
+0:05
20K
12.43 mi12:09:241:38:097:5424:41
7:57
-0:01
Half
13.11 mi12:14:431:43:287:545:19
7:48
-0:09
25K
15.53 mi12:34:072:02:527:5519:24
8:00
+0:12
30K
18.64 mi12:59:542:28:397:5825:47
8:18
+0:18
20M
20.00 mi13:11:092:39:548:0011:15
8:17
-0:01
21M
21.00 mi13:19:432:48:288:018:34
8:34
+0:17
35K
21.75 mi13:25:442:54:298:016:01
8:03
-0:31
23M
23.00 mi13:35:473:04:328:0110:03
8:02
-0:01
24M
24.00 mi13:43:353:12:208:017:48
7:48
-0:14
40K
24.85 mi13:50:173:19:028:006:42
7:50
+0:02
25.2M
25.20 mi13:53:113:21:568:012:54
8:25
+0:35
Finish
26.22 mi14:00:483:29:338:007:37
7:28
-0:57

Checkpoints & Pacing

📈Pace 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

7:28 /mi

Average Pace

8:00 /mi

Slowest Pace

8:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:03

77% of race

Time at Steady Pace

48:30

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:00 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ 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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:55:2924:147:4824:14
7:48
#14793
10K
6.21 mi11:19:5948:447:5124:30
7:53
#15167
15K
9.32 mi11:44:431:13:287:5324:44
7:58
#15343
20K
12.43 mi12:09:241:38:097:5424:41
7:57
#15076
Half
13.11 mi12:14:431:43:287:545:19
7:48
#15021
25K
15.53 mi12:34:072:02:527:5519:24
8:00
#14803
30K
18.64 mi12:59:542:28:397:5825:47
8:18
#14483
20M
20.00 mi13:11:092:39:548:0011:15
8:17
#14271
21M
21.00 mi13:19:432:48:288:018:34
8:34
#14012
35K
21.75 mi13:25:442:54:298:016:01
8:03
#13945
23M
23.00 mi13:35:473:04:328:0110:03
8:02
#13688
24M
24.00 mi13:43:353:12:208:017:48
7:48
#13500
40K
24.85 mi13:50:173:19:028:006:42
7:50
#13311
25.2M
25.20 mi13:53:113:21:568:012:54
8:25
#13225
Finish
26.22 mi14:00:483:29:338:007:37
7:28
#13090
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi14793103401034015726(Top 55%)10688(Top 66%)10688(Top 535%)
10K6.21 mi3.10 mi15167-37410478-13810478-13815554(Top 55%)10645(Top 66%)10645(Top 533%)
15K9.32 mi3.11 mi15343-17610541-6310541-6315726(Top 55%)10688(Top 66%)10688(Top 535%)
20K12.43 mi3.11 mi15076+26710404+13710404+13714472(Top 51%)10073(Top 63%)10073(Top 505%)
Half13.11 mi0.68 mi15021+5510377+2710377+2714141(Top 50%)9953(Top 62%)9953(Top 499%)
25K15.53 mi2.42 mi14803+21810250+12710250+12713885(Top 49%)9693(Top 60%)9693(Top 486%)
30K18.64 mi3.11 mi14483+32010059+19110059+19113488(Top 47%)9351(Top 58%)9351(Top 468%)
20M20.00 mi1.36 mi14271+2129941+1189941+11812336(Top 43%)8691(Top 54%)8691(Top 435%)
21M21.00 mi1.00 mi14012+2599798+1439798+14310891(Top 38%)7830(Top 49%)7830(Top 392%)
35K21.75 mi0.75 mi13945+679748+509748+5012515(Top 44%)8576(Top 53%)8576(Top 430%)
23M23.00 mi1.25 mi13688+2579594+1549594+15410216(Top 36%)7349(Top 46%)7349(Top 368%)
24M24.00 mi1.00 mi13500+1889487+1079487+1079811(Top 35%)7082(Top 44%)7082(Top 355%)
40K24.85 mi0.85 mi13311+1899373+1149373+1149022(Top 32%)6546(Top 41%)6546(Top 328%)
25.2M25.20 mi0.35 mi13225+869320+539320+538261(Top 29%)6085(Top 38%)6085(Top 305%)
Finish26.22 mi1.02 mi13090+1359243+779243+779010(Top 32%)6450(Top 40%)6450(Top 323%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

15726

Males

10688

M50-54

10688

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

15554

Males

10645

M50-54

10645

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

15726

Males

10688

M50-54

10688

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14472

Males

10073

M50-54

10073

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

14141

Males

9953

M50-54

9953

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13885

Males

9693

M50-54

9693

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

13488

Males

9351

M50-54

9351

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

12336

Males

8691

M50-54

8691

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10891

Males

7830

M50-54

7830

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

12515

Males

8576

M50-54

8576

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

10216

Males

7349

M50-54

7349

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9811

Males

7082

M50-54

7082

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9022

Males

6546

M50-54

6546

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8261

Males

6085

M50-54

6085

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

9010

Males

6450

M50-54

6450

Passing Analysis

Category:
Athletes Passed
2914
Passed By
1211
Net Change
+1703
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14793
5K → 10K160534-374#14793#15167
10K → 15K152328-176#15167#15343
15K → 20K34982+267#15343#15076
20K → Half7015+55#15076#15021
Half → 25K27557+218#15021#14803
25K → 30K41090+320#14803#14483
30K → 20M23523+212#14483#14271
20M → 21M27314+259#14271#14012
21M → 35K9831+67#14012#13945
35K → 23M26710+257#13945#13688
23M → 24M20012+188#13688#13500
24M → 40K1934+189#13500#13311
40K → 25.2M871+86#13311#13225
25.2M → Finish14510+135#13225#13090
TOTALS29141211+1703
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing