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BOSTON MARATHON 2025

Joel Jerkin

Bib: 32352•M

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

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
8:36/mi
26:43
↑ 97↓ 3451.5%
10K· 6.21 mi
8:36/mi
53:27
↑ 79↓ 1380.4%
15K· 9.32 mi
8:31/mi
1:19:55
↑ 67↓ 78
20K· 12.43 mi
8:34/mi
1:46:33
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:52:22
↑ 19↓ 370.5%
25K· 15.53 mi
8:44/mi
2:13:33
↑ 66↓ 880.2%
30K· 18.64 mi
8:49/mi
2:40:57
↑ 181↓ 1480.2%
20M
8:55/mi
2:53:04
↑ 64↓ 500.2%
21M
9:11/mi
3:02:15
↑ 106↓ 241.6%
35K· 21.75 mi
8:43/mi
3:08:46
↑ 17↓ 861.7%
23M
8:56/mi
3:19:57
↑ 23↓ 630.6%
24M
8:48/mi
3:28:45
↓ 821.3%
40K· 24.85 mi
8:51/mi
3:36:19
↓ 200.3%
25.2M
9:23/mi
3:39:33
↑ 13↓ 160.2%
Finish· 26.22 mi
8:05/mi
3:47:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:22
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time1:55:25
Pace8:48 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0426:438:3626:43
8:36
-
10K
6.21 mi12:16:4853:278:3626:44
8:36
0:00
15K
9.32 mi12:43:161:19:558:3426:28
8:31
-0:05
20K
12.43 mi13:09:541:46:338:3426:38
8:34
+0:03
Half
13.11 mi13:15:431:52:228:345:49
8:32
-0:02
25K
15.53 mi13:36:542:13:338:3621:11
8:44
+0:12
30K
18.64 mi14:04:182:40:578:3827:24
8:49
+0:05
20M
20.00 mi14:16:252:53:048:3912:07
8:55
+0:06
21M
21.00 mi14:25:363:02:158:419:11
9:11
+0:16
35K
21.75 mi14:32:073:08:468:416:31
8:43
-0:28
23M
23.00 mi14:43:183:19:578:4211:11
8:56
+0:13
24M
24.00 mi14:52:063:28:458:428:48
8:48
-0:08
40K
24.85 mi14:59:403:36:198:427:34
8:51
+0:03
25.2M
25.20 mi15:02:543:39:338:433:14
9:23
+0:32
Finish
26.22 mi15:11:083:47:478:428:14
8:05
-1:18

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

8:05 /mi

Average Pace

8:42 /mi

Slowest Pace

9:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:04

84% of race

Time at Steady Pace

35:43

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:41 /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 mi11:50:0426:438:3626:43
8:36
#20446
10K
6.21 mi12:16:4853:278:3626:44
8:36
#20401
15K
9.32 mi12:43:161:19:558:3426:28
8:31
#20098
20K
12.43 mi13:09:541:46:338:3426:38
8:34
#19730
Half
13.11 mi13:15:431:52:228:345:49
8:32
#19714
25K
15.53 mi13:36:542:13:338:3621:11
8:44
#19486
30K
18.64 mi14:04:182:40:578:3827:24
8:49
#18945
20M
20.00 mi14:16:252:53:048:3912:07
8:55
#18740
21M
21.00 mi14:25:363:02:158:419:11
9:11
#18478
35K
21.75 mi14:32:073:08:468:416:31
8:43
#18408
23M
23.00 mi14:43:183:19:578:4211:11
8:56
#18249
24M
24.00 mi14:52:063:28:458:428:48
8:48
#18142
40K
24.85 mi14:59:403:36:198:427:34
8:51
#18031
25.2M
25.20 mi15:02:543:39:338:433:14
9:23
#17965
Finish
26.22 mi15:11:083:47:478:428:14
8:05
#17785
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi20446126151261519426(Top 68%)12237(Top 76%)12237(Top 217%)
10K6.21 mi3.10 mi20401+4512632-1712632-1720367(Top 72%)12634(Top 78%)12634(Top 224%)
15K9.32 mi3.11 mi20098+30312515+11712515+11719426(Top 68%)12237(Top 76%)12237(Top 217%)
20K12.43 mi3.11 mi19730+36812353+16212353+16218675(Top 66%)11890(Top 74%)11890(Top 211%)
Half13.11 mi0.68 mi19714+1612343+1012343+1019313(Top 68%)12167(Top 76%)12167(Top 216%)
25K15.53 mi2.42 mi19486+22812240+10312240+10318596(Top 65%)11792(Top 73%)11792(Top 209%)
30K18.64 mi3.11 mi18945+54111978+26211978+26216707(Top 59%)10800(Top 67%)10800(Top 191%)
20M20.00 mi1.36 mi18740+20511861+11711861+11716331(Top 57%)10503(Top 65%)10503(Top 186%)
21M21.00 mi1.00 mi18478+26211715+14611715+14614531(Top 51%)9591(Top 60%)9591(Top 170%)
35K21.75 mi0.75 mi18408+7011671+4411671+4416738(Top 59%)10512(Top 65%)10512(Top 186%)
23M23.00 mi1.25 mi18249+15911569+10211569+10215869(Top 56%)10017(Top 62%)10017(Top 178%)
24M24.00 mi1.00 mi18142+10711495+7411495+7416308(Top 57%)10166(Top 63%)10166(Top 180%)
40K24.85 mi0.85 mi18031+11111421+7411421+7415458(Top 54%)9645(Top 60%)9645(Top 171%)
25.2M25.20 mi0.35 mi17965+6611383+3811383+3813866(Top 49%)8900(Top 55%)8900(Top 158%)
Finish26.22 mi1.02 mi17785+18011279+10411279+10413443(Top 47%)8751(Top 54%)8751(Top 155%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19426

Males

12237

M18-39

12237

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20367

Males

12634

M18-39

12634

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19426

Males

12237

M18-39

12237

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

18675

Males

11890

M18-39

11890

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19313

Males

12167

M18-39

12167

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

18596

Males

11792

M18-39

11792

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

16707

Males

10800

M18-39

10800

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

16331

Males

10503

M18-39

10503

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

14531

Males

9591

M18-39

9591

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

16738

Males

10512

M18-39

10512

35K→23M

21.8 - 23.0 mi

Top 56%
×5story building
+23ft-63ft

Overall

15869

Males

10017

M18-39

10017

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16308

Males

10166

M18-39

10166

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15458

Males

9645

M18-39

9645

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13866

Males

8900

M18-39

8900

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

13443

Males

8751

M18-39

8751

Passing Analysis

Category:
Athletes Passed
3253
Passed By
592
Net Change
+2661
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20446
5K → 10K311266+45#20446#20401
10K → 15K36360+303#20401#20098
15K → 20K40537+368#20098#19730
20K → Half3721+16#19730#19714
Half → 25K28052+228#19714#19486
25K → 30K56524+541#19486#18945
30K → 20M22419+205#18945#18740
20M → 21M27311+262#18740#18478
21M → 35K9020+70#18478#18408
35K → 23M18324+159#18408#18249
23M → 24M13124+107#18249#18142
24M → 40K13221+111#18142#18031
40K → 25.2M693+66#18031#17965
25.2M → Finish19010+180#17965#17785
TOTALS3253592+2661
📊

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