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BOSTON MARATHON 2025

David Kersbergen

Bib: 16267•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 49%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Top 41%
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
8:05/mi
25:06
↑ 97↓ 3451.5%
10K· 6.21 mi
8:07/mi
50:18
↑ 79↓ 1380.4%
15K· 9.32 mi
8:09/mi
1:15:38
↑ 67↓ 78
20K· 12.43 mi
8:05/mi
1:40:46
↑ 106↓ 860.1%
Half· 13.11 mi
7:53/mi
1:46:09
↑ 19↓ 370.5%
25K· 15.53 mi
7:58/mi
2:05:28
↑ 66↓ 880.2%
30K· 18.64 mi
8:21/mi
2:31:24
↑ 181↓ 1480.2%
20M
8:15/mi
2:42:37
↑ 64↓ 500.2%
21M
8:53/mi
2:51:30
↑ 106↓ 241.6%
35K· 21.75 mi
7:41/mi
2:57:15
↑ 17↓ 861.7%
23M
7:53/mi
3:07:07
↑ 23↓ 630.6%
24M
7:46/mi
3:14:53
↓ 821.3%
40K· 24.85 mi
7:55/mi
3:21:39
↓ 200.3%
25.2M
8:51/mi
3:24:42
↑ 13↓ 160.2%
Finish· 26.22 mi
8:05/mi
3:32:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:46:09
Pace8:06 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:46:47
Pace8:09 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:59:3825:068:0525:06
8:05
-
10K
6.21 mi11:24:5050:188:0625:12
8:07
+0:02
15K
9.32 mi11:50:101:15:388:0725:20
8:09
+0:02
20K
12.43 mi12:15:181:40:468:0725:08
8:05
-0:04
Half
13.11 mi12:20:411:46:098:065:23
7:53
-0:12
25K
15.53 mi12:40:002:05:288:0519:19
7:58
+0:05
30K
18.64 mi13:05:562:31:248:0725:56
8:21
+0:23
20M
20.00 mi13:17:092:42:378:0811:13
8:15
-0:06
21M
21.00 mi13:26:022:51:308:108:53
8:53
+0:38
35K
21.75 mi13:31:472:57:158:095:45
7:41
-1:12
23M
23.00 mi13:41:393:07:078:089:52
7:53
+0:12
24M
24.00 mi13:49:253:14:538:077:46
7:46
-0:07
40K
24.85 mi13:56:113:21:398:076:46
7:55
+0:09
25.2M
25.20 mi13:59:143:24:428:073:03
8:51
+0:56
Finish
26.22 mi14:07:283:32:568:088:14
8:05
-0:46

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

7:41 /mi

Average Pace

8:08 /mi

Slowest Pace

8:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:00

94% of race

Time at Steady Pace

11:56

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:07 /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 mi10:59:3825:068:0525:06
8:05
#17200
10K
6.21 mi11:24:5050:188:0625:12
8:07
#17217
15K
9.32 mi11:50:101:15:388:0725:20
8:09
#17185
20K
12.43 mi12:15:181:40:468:0725:08
8:05
#16737
Half
13.11 mi12:20:411:46:098:065:23
7:53
#16646
25K
15.53 mi12:40:002:05:288:0519:19
7:58
#16144
30K
18.64 mi13:05:562:31:248:0725:56
8:21
#15668
20M
20.00 mi13:17:092:42:378:0811:13
8:15
#15364
21M
21.00 mi13:26:022:51:308:108:53
8:53
#15145
35K
21.75 mi13:31:472:57:158:095:45
7:41
#14945
23M
23.00 mi13:41:393:07:078:089:52
7:53
#14554
24M
24.00 mi13:49:253:14:538:077:46
7:46
#14335
40K
24.85 mi13:56:113:21:398:076:46
7:55
#14138
25.2M
25.20 mi13:59:143:24:428:073:03
8:51
#14073
Finish
26.22 mi14:07:283:32:568:088:14
8:05
#14004
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi17200112881128817092(Top 60%)11254(Top 70%)11254(Top 683%)
10K6.21 mi3.10 mi17217-1711307-1911307-1917267(Top 61%)11349(Top 70%)11349(Top 689%)
15K9.32 mi3.11 mi17185+3211313-611313-617092(Top 60%)11254(Top 70%)11254(Top 683%)
20K12.43 mi3.11 mi16737+44811107+20611107+20615560(Top 55%)10567(Top 66%)10567(Top 641%)
Half13.11 mi0.68 mi16646+9111065+4211065+4214944(Top 53%)10307(Top 64%)10307(Top 625%)
25K15.53 mi2.42 mi16144+50210853+21210853+21213621(Top 48%)9569(Top 59%)9569(Top 581%)
30K18.64 mi3.11 mi15668+47610591+26210591+26213788(Top 49%)9503(Top 59%)9503(Top 577%)
20M20.00 mi1.36 mi15364+30410415+17610415+17612169(Top 43%)8611(Top 53%)8611(Top 523%)
21M21.00 mi1.00 mi15145+21910295+12010295+12012813(Top 45%)8754(Top 54%)8754(Top 531%)
35K21.75 mi0.75 mi14945+20010196+9910196+999980(Top 35%)7380(Top 46%)7380(Top 448%)
23M23.00 mi1.25 mi14554+3919995+2019995+2019154(Top 32%)6812(Top 42%)6812(Top 413%)
24M24.00 mi1.00 mi14335+2199868+1279868+1279575(Top 34%)6967(Top 43%)6967(Top 423%)
40K24.85 mi0.85 mi14138+1979740+1289740+1289570(Top 34%)6844(Top 42%)6844(Top 415%)
25.2M25.20 mi0.35 mi14073+659702+389702+3810898(Top 38%)7451(Top 46%)7451(Top 452%)
Finish26.22 mi1.02 mi14004+699644+589644+5813425(Top 47%)8733(Top 54%)8733(Top 530%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

17092

Males

11254

M55-59

11254

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17267

Males

11349

M55-59

11349

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

17092

Males

11254

M55-59

11254

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

15560

Males

10567

M55-59

10567

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14944

Males

10307

M55-59

10307

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

13621

Males

9569

M55-59

9569

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13788

Males

9503

M55-59

9503

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

12169

Males

8611

M55-59

8611

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12813

Males

8754

M55-59

8754

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9980

Males

7380

M55-59

7380

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

9154

Males

6812

M55-59

6812

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9575

Males

6967

M55-59

6967

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9570

Males

6844

M55-59

6844

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10898

Males

7451

M55-59

7451

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

13425

Males

8733

M55-59

8733

Passing Analysis

Category:
Athletes Passed
3848
Passed By
652
Net Change
+3196
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17200
5K → 10K290307-17#17200#17217
10K → 15K218186+32#17217#17185
15K → 20K47123+448#17185#16737
20K → Half998+91#16737#16646
Half → 25K5064+502#16646#16144
25K → 30K51640+476#16144#15668
30K → 20M3084+304#15668#15364
20M → 21M23718+219#15364#15145
21M → 35K2022+200#15145#14945
35K → 23M3932+391#14945#14554
23M → 24M2223+219#14554#14335
24M → 40K2003+197#14335#14138
40K → 25.2M7611+65#14138#14073
25.2M → Finish11041+69#14073#14004
TOTALS3848652+3196
📊

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