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BOSTON MARATHON 2025

Joshua Knapp

Bib: 25682•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
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
8:27/mi
26:16
↑ 97↓ 3451.5%
10K· 6.21 mi
8:51/mi
53:47
↑ 79↓ 1380.4%
15K· 9.32 mi
9:00/mi
1:21:44
↑ 67↓ 78
20K· 12.43 mi
9:17/mi
1:50:35
↑ 106↓ 860.1%
Half· 13.11 mi
9:18/mi
1:56:56
↑ 19↓ 370.5%
25K· 15.53 mi
9:42/mi
2:20:28
↑ 66↓ 880.2%
30K· 18.64 mi
10:04/mi
2:51:46
↑ 181↓ 1480.2%
20M
11:34/mi
3:07:29
↑ 64↓ 500.2%
21M
12:15/mi
3:19:44
↑ 106↓ 241.6%
35K· 21.75 mi
11:32/mi
3:28:22
↑ 17↓ 861.7%
23M
12:13/mi
3:43:40
↑ 23↓ 630.6%
24M
11:42/mi
3:55:22
↓ 821.3%
40K· 24.85 mi
12:18/mi
4:05:53
↓ 200.3%
25.2M
11:19/mi
4:09:47
↑ 13↓ 160.2%
Finish· 26.22 mi
8:49/mi
4:18:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:56
Pace8:55 /mi
2nd Half
Distance13.11 mi
Time2:21:50
Pace10:49 /mi
📊Positive Split: 21.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:3226:168:2726:16
8:27
-
10K
6.21 mi12:09:0353:478:3927:31
8:51
+0:24
15K
9.32 mi12:37:001:21:448:4627:57
9:00
+0:09
20K
12.43 mi13:05:511:50:358:5428:51
9:17
+0:17
Half
13.11 mi13:12:121:56:568:556:21
9:18
+0:01
25K
15.53 mi13:35:442:20:289:0323:32
9:42
+0:24
30K
18.64 mi14:07:022:51:469:1331:18
10:04
+0:22
20M
20.00 mi14:22:453:07:299:2215:43
11:34
+1:30
21M
21.00 mi14:35:003:19:449:3112:15
12:15
+0:41
35K
21.75 mi14:43:383:28:229:358:38
11:32
-0:43
23M
23.00 mi14:58:563:43:409:4315:18
12:13
+0:41
24M
24.00 mi15:10:383:55:229:4811:42
11:42
-0:31
40K
24.85 mi15:21:094:05:539:5410:31
12:18
+0:36
25.2M
25.20 mi15:25:034:09:479:553:54
11:19
-0:59
Finish
26.22 mi15:34:024:18:469:538:59
8:49
-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

8:27 /mi

Average Pace

9:53 /mi

Slowest Pace

12:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:55

49% of race

Time at Steady Pace

54:50

21% of race

Time at Slower Pace

1:18:01

30% of race

Average Pace: 9:52 /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 mi11:41:3226:168:2726:16
8:27
#19617
10K
6.21 mi12:09:0353:478:3927:31
8:51
#20683
15K
9.32 mi12:37:001:21:448:4627:57
9:00
#21080
20K
12.43 mi13:05:511:50:358:5428:51
9:17
#21438
Half
13.11 mi13:12:121:56:568:556:21
9:18
#21545
25K
15.53 mi13:35:442:20:289:0323:32
9:42
#21743
30K
18.64 mi14:07:022:51:469:1331:18
10:04
#21822
20M
20.00 mi14:22:453:07:299:2215:43
11:34
#22162
21M
21.00 mi14:35:003:19:449:3112:15
12:15
#22290
35K
21.75 mi14:43:383:28:229:358:38
11:32
#22429
23M
23.00 mi14:58:563:43:409:4315:18
12:13
#22668
24M
24.00 mi15:10:383:55:229:4811:42
11:42
#22803
40K
24.85 mi15:21:094:05:539:5410:31
12:18
#22963
25.2M
25.20 mi15:25:034:09:479:553:54
11:19
#22954
Finish
26.22 mi15:34:024:18:469:538:59
8:49
#22806
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi19617122931229322009(Top 77%)13392(Top 83%)13392(Top 596%)
10K6.21 mi3.10 mi20683-106612745-45212745-45221670(Top 76%)13206(Top 82%)13206(Top 588%)
15K9.32 mi3.11 mi21080-39712942-19712942-19722009(Top 77%)13392(Top 83%)13392(Top 596%)
20K12.43 mi3.11 mi21438-35813097-15513097-15522227(Top 78%)13458(Top 84%)13458(Top 599%)
Half13.11 mi0.68 mi21545-10713142-4513142-4522968(Top 81%)13776(Top 86%)13776(Top 613%)
25K15.53 mi2.42 mi21743-19813215-7313215-7322512(Top 79%)13514(Top 84%)13514(Top 601%)
30K18.64 mi3.11 mi21822-7913239-2413239-2421805(Top 77%)13077(Top 81%)13077(Top 582%)
20M20.00 mi1.36 mi22162-34013373-13413373-13424652(Top 87%)14295(Top 89%)14295(Top 636%)
21M21.00 mi1.00 mi22290-12813403-3013403-3024010(Top 85%)13909(Top 86%)13909(Top 619%)
35K21.75 mi0.75 mi22429-13913447-4413447-4425151(Top 89%)14416(Top 90%)14416(Top 642%)
23M23.00 mi1.25 mi22668-23913523-7613523-7625427(Top 90%)14539(Top 90%)14539(Top 647%)
24M24.00 mi1.00 mi22803-13513565-4213565-4225243(Top 89%)14428(Top 90%)14428(Top 642%)
40K24.85 mi0.85 mi22963-16013613-4813613-4825374(Top 89%)14451(Top 90%)14451(Top 643%)
25.2M25.20 mi0.35 mi22954+913603+1013603+1021533(Top 76%)12556(Top 78%)12556(Top 559%)
Finish26.22 mi1.02 mi22806+14813520+8313520+8318136(Top 64%)10943(Top 68%)10943(Top 487%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

22009

Males

13392

M40-44

13392

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

21670

Males

13206

M40-44

13206

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

22009

Males

13392

M40-44

13392

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22227

Males

13458

M40-44

13458

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

22968

Males

13776

M40-44

13776

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

22512

Males

13514

M40-44

13514

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

21805

Males

13077

M40-44

13077

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

24652

Males

14295

M40-44

14295

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

24010

Males

13909

M40-44

13909

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

25151

Males

14416

M40-44

14416

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

25427

Males

14539

M40-44

14539

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

25243

Males

14428

M40-44

14428

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25374

Males

14451

M40-44

14451

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21533

Males

12556

M40-44

12556

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

18136

Males

10943

M40-44

10943

Passing Analysis

Category:
Athletes Passed
834
Passed By
4023
Net Change
-3189
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19617
5K → 10K391105-1066#19617#20683
10K → 15K86483-397#20683#21080
15K → 20K114472-358#21080#21438
20K → Half7114-107#21438#21545
Half → 25K91289-198#21545#21743
25K → 30K171250-79#21743#21822
30K → 20M28368-340#21822#22162
20M → 21M46174-128#22162#22290
21M → 35K14153-139#22290#22429
35K → 23M21260-239#22429#22668
23M → 24M26161-135#22668#22803
24M → 40K15175-160#22803#22963
40K → 25.2M2617+9#22963#22954
25.2M → Finish1502+148#22954#22806
TOTALS8344023-3189
📊

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