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BOSTON MARATHON 2025

Jacob Simpson

Bib: 4892•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 22%
Gender (Male)
#0 / 16105
Top 34%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:24
Rank: #4313
Start → 5K
20:24 | 6:34/mi
10K· 6.21 mi
41:11
Rank: #4717 (-404)
5K → 10K
20:47 | 6:41/mi
15K· 9.32 mi
1:02:10
Rank: #4953 (-236)
10K → 15K
20:59 | 6:45/mi
20K· 12.43 mi
1:23:19
Rank: #5034 (-81)
15K → 20K
21:09 | 6:48/mi
Half· 13.11 mi
1:27:51
Rank: #5011 (+23)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:44:37
Rank: #5109 (-98)
Half → 25K
16:46 | 6:55/mi
30K· 18.64 mi
2:07:43
Rank: #5598 (-489)
25K → 30K
23:06 | 7:26/mi
20M
2:18:11
Rank: #5793 (-195)
30K → 20M
10:28 | 7:42/mi
21M
2:26:27
Rank: #5902 (-109)
20M → 21M
8:16 | 8:16/mi
35K· 21.75 mi
2:31:46
Rank: #5884 (+18)
21M → 35K
5:19 | 7:06/mi
23M
2:41:35
Rank: #5960 (-76)
35K → 23M
9:49 | 7:50/mi
24M
2:49:06
Rank: #5986 (-26)
23M → 24M
7:31 | 7:31/mi
40K· 24.85 mi
2:55:58
Rank: #6056 (-70)
24M → 40K
6:52 | 8:02/mi
25.2M
2:58:57
Rank: #6080 (-24)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:06:36
Rank: #6152 (-72)
25.2M → Finish
7:39 | 7:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:51
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:38:45
Pace7:32 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5020:246:3420:24
6:34
-
10K
6.21 mi10:45:3741:116:3820:47
6:41
+0:07
15K
9.32 mi11:06:361:02:106:4020:59
6:45
+0:04
20K
12.43 mi11:27:451:23:196:4221:09
6:48
+0:03
Half
13.11 mi11:32:171:27:516:424:32
6:39
-0:09
25K
15.53 mi11:49:031:44:376:4416:46
6:55
+0:16
30K
18.64 mi12:12:092:07:436:5123:06
7:26
+0:31
20M
20.00 mi12:22:372:18:116:5510:28
7:42
+0:16
21M
21.00 mi12:30:532:26:276:588:16
8:16
+0:34
35K
21.75 mi12:36:122:31:466:595:19
7:06
-1:10
23M
23.00 mi12:46:012:41:357:029:49
7:50
+0:44
24M
24.00 mi12:53:322:49:067:037:31
7:31
-0:19
40K
24.85 mi13:00:242:55:587:056:52
8:02
+0:31
25.2M
25.20 mi13:03:232:58:577:062:59
8:39
+0:37
Finish
26.22 mi13:11:023:06:367:077:39
7:30
-1:09

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

6:34 /mi

Average Pace

7:07 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:56

59% of race

Time at Steady Pace

48:44

26% of race

Time at Slower Pace

27:56

15% of race

Average Pace: 7:07 /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 mi10:24:5020:246:3420:24
6:34
#4313
10K
6.21 mi10:45:3741:116:3820:47
6:41
#4717
15K
9.32 mi11:06:361:02:106:4020:59
6:45
#4953
20K
12.43 mi11:27:451:23:196:4221:09
6:48
#5034
Half
13.11 mi11:32:171:27:516:424:32
6:39
#5011
25K
15.53 mi11:49:031:44:376:4416:46
6:55
#5109
30K
18.64 mi12:12:092:07:436:5123:06
7:26
#5598
20M
20.00 mi12:22:372:18:116:5510:28
7:42
#5793
21M
21.00 mi12:30:532:26:276:588:16
8:16
#5902
35K
21.75 mi12:36:122:31:466:595:19
7:06
#5884
23M
23.00 mi12:46:012:41:357:029:49
7:50
#5960
24M
24.00 mi12:53:322:49:067:037:31
7:31
#5986
40K
24.85 mi13:00:242:55:587:056:52
8:02
#6056
25.2M
25.20 mi13:03:232:58:577:062:59
8:39
#6080
Finish
26.22 mi13:11:023:06:367:077:39
7:30
#6152
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4313405440545628(Top 20%)5145(Top 32%)5145(Top 91%)
10K6.21 mi3.10 mi4717-4044417-3634417-3635249(Top 18%)4870(Top 30%)4870(Top 86%)
15K9.32 mi3.11 mi4953-2364619-2024619-2025628(Top 20%)5145(Top 32%)5145(Top 91%)
20K12.43 mi3.11 mi5034-814686-674686-675363(Top 19%)4919(Top 31%)4919(Top 87%)
Half13.11 mi0.68 mi5011+234661+254661+254798(Top 17%)4458(Top 28%)4458(Top 79%)
25K15.53 mi2.42 mi5109-984737-764737-765768(Top 20%)5212(Top 32%)5212(Top 92%)
30K18.64 mi3.11 mi5598-4895120-3835120-3837253(Top 26%)6118(Top 38%)6118(Top 108%)
20M20.00 mi1.36 mi5793-1955263-1435263-1438327(Top 29%)6620(Top 41%)6620(Top 117%)
21M21.00 mi1.00 mi5902-1095332-695332-698960(Top 32%)6779(Top 42%)6779(Top 120%)
35K21.75 mi0.75 mi5884+185311+215311+215987(Top 21%)5044(Top 31%)5044(Top 89%)
23M23.00 mi1.25 mi5960-765349-385349-388828(Top 31%)6616(Top 41%)6616(Top 117%)
24M24.00 mi1.00 mi5986-265353-45353-47771(Top 27%)5965(Top 37%)5965(Top 106%)
40K24.85 mi0.85 mi6056-705389-365389-3610369(Top 37%)7215(Top 45%)7215(Top 128%)
25.2M25.20 mi0.35 mi6080-245398-95398-99602(Top 34%)6721(Top 42%)6721(Top 119%)
Finish26.22 mi1.02 mi6152-725427-295427-299184(Top 32%)6529(Top 41%)6529(Top 116%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5628

Males

5145

M18-39

5145

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5249

Males

4870

M18-39

4870

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5628

Males

5145

M18-39

5145

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5363

Males

4919

M18-39

4919

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4798

Males

4458

M18-39

4458

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5768

Males

5212

M18-39

5212

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7253

Males

6118

M18-39

6118

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8327

Males

6620

M18-39

6620

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8960

Males

6779

M18-39

6779

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5987

Males

5044

M18-39

5044

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8828

Males

6616

M18-39

6616

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7771

Males

5965

M18-39

5965

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

10369

Males

7215

M18-39

7215

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9602

Males

6721

M18-39

6721

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

9184

Males

6529

M18-39

6529

Passing Analysis

Category:
Athletes Passed
701
Passed By
2540
Net Change
-1839
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4313
5K → 10K38442-404#4313#4717
10K → 15K48284-236#4717#4953
15K → 20K105186-81#4953#5034
20K → Half4017+23#5034#5011
Half → 25K73171-98#5011#5109
25K → 30K80569-489#5109#5598
30K → 20M24219-195#5598#5793
20M → 21M35144-109#5793#5902
21M → 35K5436+18#5902#5884
35K → 23M66142-76#5884#5960
23M → 24M3864-26#5960#5986
24M → 40K35105-70#5986#6056
40K → 25.2M2246-24#6056#6080
25.2M → Finish43115-72#6080#6152
TOTALS7012540-1839
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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