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BOSTON MARATHON 2025

Jacob Simmons

Bib: 6883•M

AE

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
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
26:14
Rank: #19550
Start → 5K
26:14 | 8:27/mi
10K· 6.21 mi
52:27
Rank: #19481 (+69)
5K → 10K
26:13 | 8:26/mi
15K· 9.32 mi
1:18:32
Rank: #19186 (+295)
10K → 15K
26:05 | 8:24/mi
20K· 12.43 mi
1:44:49
Rank: #18856 (+330)
15K → 20K
26:17 | 8:28/mi
Half· 13.11 mi
1:50:28
Rank: #18817 (+39)
20K → Half
5:39 | 8:17/mi
25K· 15.53 mi
2:11:14
Rank: #18573 (+244)
Half → 25K
20:46 | 8:34/mi
30K· 18.64 mi
2:38:24
Rank: #18089 (+484)
25K → 30K
27:10 | 8:45/mi
20M
2:49:58
Rank: #17766 (+323)
30K → 20M
11:34 | 8:31/mi
21M
2:58:57
Rank: #17499 (+267)
20M → 21M
8:59 | 8:59/mi
35K· 21.75 mi
3:05:21
Rank: #17418 (+81)
21M → 35K
6:24 | 8:33/mi
23M
3:16:13
Rank: #17229 (+189)
35K → 23M
10:52 | 8:41/mi
24M
3:24:47
Rank: #17114 (+115)
23M → 24M
8:34 | 8:34/mi
40K· 24.85 mi
3:32:14
Rank: #17014 (+100)
24M → 40K
7:27 | 8:43/mi
25.2M
3:35:24
Rank: #16934 (+80)
40K → 25.2M
3:10 | 9:11/mi
Finish· 26.22 mi
3:43:47
Rank: #16831 (+103)
25.2M → Finish
8:23 | 8:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:28
Pace8:26 /mi
2nd Half
Distance13.11 mi
Time1:53:19
Pace8:39 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:35:0926:148:2726:14
8:27
-
10K
6.21 mi11:01:2252:278:2626:13
8:26
-0:01
15K
9.32 mi11:27:271:18:328:2626:05
8:24
-0:02
20K
12.43 mi11:53:441:44:498:2626:17
8:28
+0:04
Half
13.11 mi11:59:231:50:288:265:39
8:17
-0:11
25K
15.53 mi12:20:092:11:148:2720:46
8:34
+0:17
30K
18.64 mi12:47:192:38:248:3027:10
8:45
+0:11
20M
20.00 mi12:58:532:49:588:3011:34
8:31
-0:14
21M
21.00 mi13:07:522:58:578:318:59
8:59
+0:28
35K
21.75 mi13:14:163:05:218:316:24
8:33
-0:26
23M
23.00 mi13:25:083:16:138:3210:52
8:41
+0:08
24M
24.00 mi13:33:423:24:478:328:34
8:34
-0:07
40K
24.85 mi13:41:093:32:148:327:27
8:43
+0:09
25.2M
25.20 mi13:44:193:35:248:333:10
9:11
+0:28
Finish
26.22 mi13:52:423:43:478:328:23
8:14
-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

8:14 /mi

Average Pace

8:32 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:40:37

99% of race

Time at Steady Pace

3:10

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:32 /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 mi10:35:0926:148:2726:14
8:27
#19550
10K
6.21 mi11:01:2252:278:2626:13
8:26
#19481
15K
9.32 mi11:27:271:18:328:2626:05
8:24
#19186
20K
12.43 mi11:53:441:44:498:2626:17
8:28
#18856
Half
13.11 mi11:59:231:50:288:265:39
8:17
#18817
25K
15.53 mi12:20:092:11:148:2720:46
8:34
#18573
30K
18.64 mi12:47:192:38:248:3027:10
8:45
#18089
20M
20.00 mi12:58:532:49:588:3011:34
8:31
#17766
21M
21.00 mi13:07:522:58:578:318:59
8:59
#17499
35K
21.75 mi13:14:163:05:218:316:24
8:33
#17418
23M
23.00 mi13:25:083:16:138:3210:52
8:41
#17229
24M
24.00 mi13:33:423:24:478:328:34
8:34
#17114
40K
24.85 mi13:41:093:32:148:327:27
8:43
#17014
25.2M
25.20 mi13:44:193:35:248:333:10
9:11
#16934
Finish
26.22 mi13:52:423:43:478:328:23
8:14
#16831
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19550122631226318659(Top 66%)11904(Top 74%)11904(Top 211%)
10K6.21 mi3.10 mi19481+6912251+1212251+1219425(Top 68%)12241(Top 76%)12241(Top 217%)
15K9.32 mi3.11 mi19186+29512127+12412127+12418659(Top 66%)11904(Top 74%)11904(Top 211%)
20K12.43 mi3.11 mi18856+33011977+15011977+15017941(Top 63%)11578(Top 72%)11578(Top 205%)
Half13.11 mi0.68 mi18817+3911958+1911958+1917775(Top 63%)11520(Top 72%)11520(Top 204%)
25K15.53 mi2.42 mi18573+24411839+11911839+11917561(Top 62%)11339(Top 70%)11339(Top 201%)
30K18.64 mi3.11 mi18089+48411588+25111588+25116250(Top 57%)10596(Top 66%)10596(Top 188%)
20M20.00 mi1.36 mi17766+32311415+17311415+17313872(Top 49%)9395(Top 58%)9395(Top 167%)
21M21.00 mi1.00 mi17499+26711278+13711278+13713396(Top 47%)9055(Top 56%)9055(Top 160%)
35K21.75 mi0.75 mi17418+8111221+5711221+5715785(Top 56%)10087(Top 63%)10087(Top 179%)
23M23.00 mi1.25 mi17229+18911108+11311108+11314411(Top 51%)9361(Top 58%)9361(Top 166%)
24M24.00 mi1.00 mi17114+11511049+5911049+5914927(Top 53%)9554(Top 59%)9554(Top 169%)
40K24.85 mi0.85 mi17014+10010975+7410975+7414683(Top 52%)9300(Top 58%)9300(Top 165%)
25.2M25.20 mi0.35 mi16934+8010926+4910926+4912815(Top 45%)8400(Top 52%)8400(Top 149%)
Finish26.22 mi1.02 mi16831+10310864+6210864+6214442(Top 51%)9236(Top 57%)9236(Top 164%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

18659

Males

11904

M18-39

11904

5K→10K

3.1 - 6.2 mi

Top 68%
×5stories
+79ft-138ft

Overall

19425

Males

12241

M18-39

12241

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

18659

Males

11904

M18-39

11904

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

17941

Males

11578

M18-39

11578

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17775

Males

11520

M18-39

11520

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17561

Males

11339

M18-39

11339

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

16250

Males

10596

M18-39

10596

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

13872

Males

9395

M18-39

9395

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

13396

Males

9055

M18-39

9055

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

15785

Males

10087

M18-39

10087

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

14411

Males

9361

M18-39

9361

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

14927

Males

9554

M18-39

9554

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14683

Males

9300

M18-39

9300

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12815

Males

8400

M18-39

8400

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

14442

Males

9236

M18-39

9236

Passing Analysis

Category:
Athletes Passed
3319
Passed By
600
Net Change
+2719
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19550
5K → 10K288219+69#19550#19481
10K → 15K37580+295#19481#19186
15K → 20K38555+330#19186#18856
20K → Half5112+39#18856#18817
Half → 25K28238+244#18817#18573
25K → 30K53248+484#18573#18089
30K → 20M3274+323#18089#17766
20M → 21M2736+267#17766#17499
21M → 35K10524+81#17499#17418
35K → 23M21829+189#17418#17229
23M → 24M13823+115#17229#17114
24M → 40K12222+100#17114#17014
40K → 25.2M833+80#17014#16934
25.2M → Finish14037+103#16934#16831
TOTALS3319600+2719
📊

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