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BOSTON MARATHON 2025

Jeremy Knapp

Bib: 9096•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 43%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 46%
Division (M40-44)
#0 / 2247
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
7:06/mi
22:05
↑ 97↓ 3451.5%
10K· 6.21 mi
7:08/mi
44:14
↑ 79↓ 1380.4%
15K· 9.32 mi
7:14/mi
1:06:43
↑ 67↓ 78
20K· 12.43 mi
7:16/mi
1:29:18
↑ 106↓ 860.1%
Half· 13.11 mi
7:05/mi
1:34:08
↑ 19↓ 370.5%
25K· 15.53 mi
7:26/mi
1:52:10
↑ 66↓ 880.2%
30K· 18.64 mi
7:42/mi
2:16:04
↑ 181↓ 1480.2%
20M
8:56/mi
2:28:13
↑ 64↓ 500.2%
21M
11:04/mi
2:39:17
↑ 106↓ 241.6%
35K· 21.75 mi
9:25/mi
2:46:20
↑ 17↓ 861.7%
23M
9:39/mi
2:58:25
↑ 23↓ 630.6%
24M
9:20/mi
3:07:45
↓ 821.3%
40K· 24.85 mi
8:28/mi
3:14:59
↓ 200.3%
25.2M
10:50/mi
3:18:43
↑ 13↓ 160.2%
Finish· 26.22 mi
8:20/mi
3:27:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:08
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:53:05
Pace8:38 /mi
📊Positive Split: 20.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:3822:057:0622:05
7:06
-
10K
6.21 mi11:09:4744:147:0722:09
7:08
+0:02
15K
9.32 mi11:32:161:06:437:0922:29
7:14
+0:06
20K
12.43 mi11:54:511:29:187:1122:35
7:16
+0:02
Half
13.11 mi11:59:411:34:087:114:50
7:05
-0:11
25K
15.53 mi12:17:431:52:107:1318:02
7:26
+0:21
30K
18.64 mi12:41:372:16:047:1823:54
7:42
+0:16
20M
20.00 mi12:53:462:28:137:2512:09
8:56
+1:14
21M
21.00 mi13:04:502:39:177:3511:04
11:04
+2:08
35K
21.75 mi13:11:532:46:207:397:03
9:25
-1:39
23M
23.00 mi13:23:582:58:257:4512:05
9:39
+0:14
24M
24.00 mi13:33:183:07:457:499:20
9:20
-0:19
40K
24.85 mi13:40:323:14:597:517:14
8:28
-0:52
25.2M
25.20 mi13:44:163:18:437:533:44
10:50
+2:22
Finish
26.22 mi13:52:463:27:137:558:30
8:20
-2:30

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

7:05 /mi

Average Pace

7:55 /mi

Slowest Pace

11:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:10

54% of race

Time at Steady Pace

51:47

25% of race

Time at Slower Pace

43:16

21% of race

Average Pace: 7:54 /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 mi10:47:3822:057:0622:05
7:06
#8709
10K
6.21 mi11:09:4744:147:0722:09
7:08
#8774
15K
9.32 mi11:32:161:06:437:0922:29
7:14
#8972
20K
12.43 mi11:54:511:29:187:1122:35
7:16
#8852
Half
13.11 mi11:59:411:34:087:114:50
7:05
#8801
25K
15.53 mi12:17:431:52:107:1318:02
7:26
#8864
30K
18.64 mi12:41:372:16:047:1823:54
7:42
#8828
20M
20.00 mi12:53:462:28:137:2512:09
8:56
#9477
21M
21.00 mi13:04:502:39:177:3511:04
11:04
#10562
35K
21.75 mi13:11:532:46:207:397:03
9:25
#10973
23M
23.00 mi13:23:582:58:257:4512:05
9:39
#11619
24M
24.00 mi13:33:183:07:457:499:20
9:20
#12030
40K
24.85 mi13:40:323:14:597:517:14
8:28
#12064
25.2M
25.20 mi13:44:163:18:437:533:44
10:50
#12239
Finish
26.22 mi13:52:463:27:137:558:30
8:20
#12336
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi8709744774479429(Top 33%)7787(Top 48%)7787(Top 347%)
10K6.21 mi3.10 mi8774-657467-207467-208922(Top 31%)7560(Top 47%)7560(Top 336%)
15K9.32 mi3.11 mi8972-1987569-1027569-1029429(Top 33%)7787(Top 48%)7787(Top 347%)
20K12.43 mi3.11 mi8852+1207476+937476+938789(Top 31%)7337(Top 46%)7337(Top 327%)
Half13.11 mi0.68 mi8801+517438+387438+388194(Top 29%)7033(Top 44%)7033(Top 313%)
25K15.53 mi2.42 mi8864-637454-167454-169447(Top 33%)7582(Top 47%)7582(Top 337%)
30K18.64 mi3.11 mi8828+367372+827372+829148(Top 32%)7225(Top 45%)7225(Top 322%)
20M20.00 mi1.36 mi9477-6497690-3187690-31816448(Top 58%)10550(Top 66%)10550(Top 470%)
21M21.00 mi1.00 mi10562-10858214-5248214-52421564(Top 76%)12758(Top 79%)12758(Top 568%)
35K21.75 mi0.75 mi10973-4118387-1738387-17320012(Top 70%)11966(Top 74%)11966(Top 533%)
23M23.00 mi1.25 mi11619-6468652-2658652-26519258(Top 68%)11556(Top 72%)11556(Top 514%)
24M24.00 mi1.00 mi12030-4118812-1608812-16018931(Top 67%)11367(Top 71%)11367(Top 506%)
40K24.85 mi0.85 mi12064-348793+198793+1913158(Top 46%)8597(Top 53%)8597(Top 383%)
25.2M25.20 mi0.35 mi12239-1758870-778870-7720054(Top 71%)11796(Top 73%)11796(Top 525%)
Finish26.22 mi1.02 mi12336-978878-88878-815158(Top 53%)9542(Top 59%)9542(Top 425%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

9429

Males

7787

M40-44

7787

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

8922

Males

7560

M40-44

7560

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

9429

Males

7787

M40-44

7787

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8789

Males

7337

M40-44

7337

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

8194

Males

7033

M40-44

7033

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

9447

Males

7582

M40-44

7582

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

9148

Males

7225

M40-44

7225

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

16448

Males

10550

M40-44

10550

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

21564

Males

12758

M40-44

12758

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

20012

Males

11966

M40-44

11966

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

19258

Males

11556

M40-44

11556

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

18931

Males

11367

M40-44

11367

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

13158

Males

8597

M40-44

8597

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20054

Males

11796

M40-44

11796

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

15158

Males

9542

M40-44

9542

Passing Analysis

Category:
Athletes Passed
1093
Passed By
4718
Net Change
-3627
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8709
5K → 10K169234-65#8709#8774
10K → 15K101299-198#8774#8972
15K → 20K220100+120#8972#8852
20K → Half587+51#8852#8801
Half → 25K134197-63#8801#8864
25K → 30K231195+36#8864#8828
30K → 20M18667-649#8828#9477
20M → 21M51088-1085#9477#10562
21M → 35K6417-411#10562#10973
35K → 23M14660-646#10973#11619
23M → 24M18429-411#11619#12030
24M → 40K66100-34#12030#12064
40K → 25.2M8183-175#12064#12239
25.2M → Finish45142-97#12239#12336
TOTALS10934718-3627
📊

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