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BOSTON MARATHON 2025

Leo Ammerlaan

Bib: 19726•M

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Top 50%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:44
Rank: #18590
Start → 5K
25:44 | 8:17/mi
10K· 6.21 mi
51:20
Rank: #18377 (+213)
5K → 10K
25:36 | 8:14/mi
15K· 9.32 mi
1:16:47
Rank: #18019 (+358)
10K → 15K
25:27 | 8:11/mi
20K· 12.43 mi
1:42:18
Rank: #17553 (+466)
15K → 20K
25:31 | 8:13/mi
Half· 13.11 mi
1:47:49
Rank: #17493 (+60)
20K → Half
5:31 | 8:05/mi
25K· 15.53 mi
2:07:55
Rank: #17174 (+319)
Half → 25K
20:06 | 8:17/mi
30K· 18.64 mi
2:34:17
Rank: #16693 (+481)
25K → 30K
26:22 | 8:29/mi
20M
2:45:43
Rank: #16408 (+285)
30K → 20M
11:26 | 8:25/mi
21M
2:54:34
Rank: #16162 (+246)
20M → 21M
8:51 | 8:51/mi
35K· 21.75 mi
3:00:43
Rank: #16043 (+119)
21M → 35K
6:09 | 8:13/mi
23M
3:11:20
Rank: #15802 (+241)
35K → 23M
10:37 | 8:29/mi
24M
3:19:32
Rank: #15659 (+143)
23M → 24M
8:12 | 8:12/mi
40K· 24.85 mi
3:26:42
Rank: #15528 (+131)
24M → 40K
7:10 | 8:23/mi
25.2M
3:29:52
Rank: #15475 (+53)
40K → 25.2M
3:10 | 9:11/mi
Finish· 26.22 mi
3:38:07
Rank: #15403 (+72)
25.2M → Finish
8:15 | 8:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:49
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time1:50:18
Pace8:25 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5325:448:1725:44
8:17
-
10K
6.21 mi11:43:2951:208:1625:36
8:14
-0:03
15K
9.32 mi12:08:561:16:478:1425:27
8:11
-0:03
20K
12.43 mi12:34:271:42:188:1425:31
8:13
+0:02
Half
13.11 mi12:39:581:47:498:135:31
8:05
-0:08
25K
15.53 mi13:00:042:07:558:1420:06
8:17
+0:12
30K
18.64 mi13:26:262:34:178:1726:22
8:29
+0:12
20M
20.00 mi13:37:522:45:438:1711:26
8:25
-0:04
21M
21.00 mi13:46:432:54:348:198:51
8:51
+0:26
35K
21.75 mi13:52:523:00:438:196:09
8:13
-0:38
23M
23.00 mi14:03:293:11:208:1910:37
8:29
+0:16
24M
24.00 mi14:11:413:19:328:198:12
8:12
-0:17
40K
24.85 mi14:18:513:26:428:197:10
8:23
+0:11
25.2M
25.20 mi14:22:013:29:528:203:10
9:11
+0:48
Finish
26.22 mi14:30:163:38:078:208:15
8:06
-1:05

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

8:20 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:34:57

99% of race

Time at Steady Pace

3:10

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:19 /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 mi11:17:5325:448:1725:44
8:17
#18590
10K
6.21 mi11:43:2951:208:1625:36
8:14
#18377
15K
9.32 mi12:08:561:16:478:1425:27
8:11
#18019
20K
12.43 mi12:34:271:42:188:1425:31
8:13
#17553
Half
13.11 mi12:39:581:47:498:135:31
8:05
#17493
25K
15.53 mi13:00:042:07:558:1420:06
8:17
#17174
30K
18.64 mi13:26:262:34:178:1726:22
8:29
#16693
20M
20.00 mi13:37:522:45:438:1711:26
8:25
#16408
21M
21.00 mi13:46:432:54:348:198:51
8:51
#16162
35K
21.75 mi13:52:523:00:438:196:09
8:13
#16043
23M
23.00 mi14:03:293:11:208:1910:37
8:29
#15802
24M
24.00 mi14:11:413:19:328:198:12
8:12
#15659
40K
24.85 mi14:18:513:26:428:197:10
8:23
#15528
25.2M
25.20 mi14:22:013:29:528:203:10
9:11
#15475
Finish
26.22 mi14:30:163:38:078:208:15
8:06
#15403
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi18590118561185617330(Top 61%)11359(Top 71%)11359(Top 689%)
10K6.21 mi3.10 mi18377+21311775+8111775+8118153(Top 64%)11706(Top 73%)11706(Top 710%)
15K9.32 mi3.11 mi18019+35811621+15411621+15417330(Top 61%)11359(Top 71%)11359(Top 689%)
20K12.43 mi3.11 mi17553+46611436+18511436+18516370(Top 58%)10904(Top 68%)10904(Top 662%)
Half13.11 mi0.68 mi17493+6011410+2611410+2616484(Top 58%)10963(Top 68%)10963(Top 665%)
25K15.53 mi2.42 mi17174+31911255+15511255+15515841(Top 56%)10572(Top 66%)10572(Top 642%)
30K18.64 mi3.11 mi16693+48111011+24411011+24414651(Top 52%)9902(Top 61%)9902(Top 601%)
20M20.00 mi1.36 mi16408+28510857+15410857+15413235(Top 47%)9099(Top 56%)9099(Top 552%)
21M21.00 mi1.00 mi16162+24610730+12710730+12712602(Top 44%)8650(Top 54%)8650(Top 525%)
35K21.75 mi0.75 mi16043+11910649+8110649+8113742(Top 48%)9165(Top 57%)9165(Top 556%)
23M23.00 mi1.25 mi15802+24110511+13810511+13813171(Top 46%)8781(Top 55%)8781(Top 533%)
24M24.00 mi1.00 mi15659+14310434+7710434+7712556(Top 44%)8450(Top 52%)8450(Top 513%)
40K24.85 mi0.85 mi15528+13110340+9410340+9412670(Top 45%)8376(Top 52%)8376(Top 508%)
25.2M25.20 mi0.35 mi15475+5310308+3210308+3212804(Top 45%)8389(Top 52%)8389(Top 509%)
Finish26.22 mi1.02 mi15403+7210254+5410254+5413550(Top 48%)8795(Top 55%)8795(Top 534%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17330

Males

11359

M55-59

11359

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

18153

Males

11706

M55-59

11706

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17330

Males

11359

M55-59

11359

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

16370

Males

10904

M55-59

10904

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

16484

Males

10963

M55-59

10963

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

15841

Males

10572

M55-59

10572

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

14651

Males

9902

M55-59

9902

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

13235

Males

9099

M55-59

9099

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

12602

Males

8650

M55-59

8650

21M→35K

21.0 - 21.8 mi

Top 48%
×7stories
+17ft-86ft

Overall

13742

Males

9165

M55-59

9165

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

13171

Males

8781

M55-59

8781

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

12556

Males

8450

M55-59

8450

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12670

Males

8376

M55-59

8376

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12804

Males

8389

M55-59

8389

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13550

Males

8795

M55-59

8795

Passing Analysis

Category:
Athletes Passed
3588
Passed By
401
Net Change
+3187
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18590
5K → 10K377164+213#18590#18377
10K → 15K41052+358#18377#18019
15K → 20K49024+466#18019#17553
20K → Half677+60#17553#17493
Half → 25K35839+319#17493#17174
25K → 30K50625+481#17174#16693
30K → 20M2927+285#16693#16408
20M → 21M2526+246#16408#16162
21M → 35K13516+119#16162#16043
35K → 23M2498+241#16043#15802
23M → 24M1529+143#15802#15659
24M → 40K14110+131#15659#15528
40K → 25.2M607+53#15528#15475
25.2M → Finish9927+72#15475#15403
TOTALS3588401+3187
📊

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