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BOSTON MARATHON 2025

Isaac Valderrabano

Bib: 2175•M

PA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 20%
Division (M18-39)
#0 / 5642
Top 43%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
19:28
Rank: #2235
Start → 5K
19:28 | 6:16/mi
10K· 6.21 mi
38:48
Rank: #2108 (+127)
5K → 10K
19:20 | 6:13/mi
15K· 9.32 mi
58:14
Rank: #2099 (+9)
10K → 15K
19:26 | 6:15/mi
20K· 12.43 mi
1:17:43
Rank: #2020 (+79)
15K → 20K
19:29 | 6:16/mi
Half· 13.11 mi
1:21:57
Rank: #2014 (+6)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:37:27
Rank: #2061 (-47)
Half → 25K
15:30 | 6:24/mi
30K· 18.64 mi
1:59:34
Rank: #2528 (-467)
25K → 30K
22:07 | 7:07/mi
20M
2:09:48
Rank: #2813 (-285)
30K → 20M
10:14 | 7:32/mi
21M
2:16:55
Rank: #2779 (+34)
20M → 21M
7:07 | 7:07/mi
35K· 21.75 mi
2:23:18
Rank: #3135 (-356)
21M → 35K
6:23 | 8:32/mi
23M
2:32:25
Rank: #3204 (-69)
35K → 23M
9:07 | 7:17/mi
24M
2:39:31
Rank: #3258 (-54)
23M → 24M
7:06 | 7:06/mi
40K· 24.85 mi
2:45:44
Rank: #3305 (-47)
24M → 40K
6:13 | 7:16/mi
25.2M
2:48:31
Rank: #3355 (-50)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
2:55:39
Rank: #3395 (-40)
25.2M → Finish
7:08 | 7:00/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:57
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:33:42
Pace7:09 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0119:286:1619:28
6:16
-
10K
6.21 mi10:39:2138:486:1519:20
6:13
-0:03
15K
9.32 mi10:58:4758:146:1519:26
6:15
+0:02
20K
12.43 mi11:18:161:17:436:1519:29
6:16
+0:01
Half
13.11 mi11:22:301:21:576:154:14
6:12
-0:04
25K
15.53 mi11:38:001:37:276:1615:30
6:24
+0:12
30K
18.64 mi12:00:071:59:346:2522:07
7:07
+0:43
20M
20.00 mi12:10:212:09:486:2910:14
7:32
+0:25
21M
21.00 mi12:17:282:16:556:317:07
7:07
-0:25
35K
21.75 mi12:23:512:23:186:356:23
8:32
+1:25
23M
23.00 mi12:32:582:32:256:389:07
7:17
-1:15
24M
24.00 mi12:40:042:39:316:397:06
7:06
-0:11
40K
24.85 mi12:46:172:45:446:406:13
7:16
+0:10
25.2M
25.20 mi12:49:042:48:316:412:47
8:04
+0:48
Finish
26.22 mi12:56:122:55:396:427:08
7:00
-1:04

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

6:12 /mi

Average Pace

6:42 /mi

Slowest Pace

8:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:37:27

55% of race

Time at Steady Pace

58:48

33% of race

Time at Slower Pace

19:24

11% of race

Average Pace: 6:42 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:20:0119:286:1619:28
6:16
#2235
10K
6.21 mi10:39:2138:486:1519:20
6:13
#2108
15K
9.32 mi10:58:4758:146:1519:26
6:15
#2099
20K
12.43 mi11:18:161:17:436:1519:29
6:16
#2020
Half
13.11 mi11:22:301:21:576:154:14
6:12
#2014
25K
15.53 mi11:38:001:37:276:1615:30
6:24
#2061
30K
18.64 mi12:00:071:59:346:2522:07
7:07
#2528
20M
20.00 mi12:10:212:09:486:2910:14
7:32
#2813
21M
21.00 mi12:17:282:16:556:317:07
7:07
#2779
35K
21.75 mi12:23:512:23:186:356:23
8:32
#3135
23M
23.00 mi12:32:582:32:256:389:07
7:17
#3204
24M
24.00 mi12:40:042:39:316:397:06
7:06
#3258
40K
24.85 mi12:46:172:45:446:406:13
7:16
#3305
25.2M
25.20 mi12:49:042:48:316:412:47
8:04
#3355
Finish
26.22 mi12:56:122:55:396:427:08
7:00
#3395
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2235213521352137(Top 8%)2039(Top 13%)2039(Top 36%)
10K6.21 mi3.10 mi2108+1272011+1242011+1242029(Top 7%)1933(Top 12%)1933(Top 34%)
15K9.32 mi3.11 mi2099+92002+92002+92137(Top 8%)2039(Top 13%)2039(Top 36%)
20K12.43 mi3.11 mi2020+791928+741928+741904(Top 7%)1814(Top 11%)1814(Top 32%)
Half13.11 mi0.68 mi2014+61924+41924+42057(Top 7%)1966(Top 12%)1966(Top 35%)
25K15.53 mi2.42 mi2061-471966-421966-422346(Top 8%)2231(Top 14%)2231(Top 40%)
30K18.64 mi3.11 mi2528-4672414-4482414-4485424(Top 19%)4875(Top 30%)4875(Top 86%)
20M20.00 mi1.36 mi2813-2852679-2652679-2657192(Top 25%)5955(Top 37%)5955(Top 106%)
21M21.00 mi1.00 mi2779+342646+332646+332780(Top 10%)2583(Top 16%)2583(Top 46%)
35K21.75 mi0.75 mi3135-3562968-3222968-32215603(Top 55%)9971(Top 62%)9971(Top 177%)
23M23.00 mi1.25 mi3204-693023-553023-555347(Top 19%)4558(Top 28%)4558(Top 81%)
24M24.00 mi1.00 mi3258-543071-483071-485212(Top 18%)4402(Top 27%)4402(Top 78%)
40K24.85 mi0.85 mi3305-473109-383109-385483(Top 19%)4543(Top 28%)4543(Top 81%)
25.2M25.20 mi0.35 mi3355-503148-393148-396267(Top 22%)4900(Top 30%)4900(Top 87%)
Finish26.22 mi1.02 mi3395-403178-303178-305716(Top 20%)4553(Top 28%)4553(Top 81%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2137

Males

2039

M18-39

2039

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

2029

Males

1933

M18-39

1933

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2137

Males

2039

M18-39

2039

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1904

Males

1814

M18-39

1814

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

2057

Males

1966

M18-39

1966

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2346

Males

2231

M18-39

2231

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5424

Males

4875

M18-39

4875

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

7192

Males

5955

M18-39

5955

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2780

Males

2583

M18-39

2583

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

15603

Males

9971

M18-39

9971

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5347

Males

4558

M18-39

4558

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

5212

Males

4402

M18-39

4402

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5483

Males

4543

M18-39

4543

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6267

Males

4900

M18-39

4900

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5716

Males

4553

M18-39

4553

Passing Analysis

Category:
Athletes Passed
653
Passed By
1813
Net Change
-1160
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2235
5K → 10K18356+127#2235#2108
10K → 15K7364+9#2108#2099
15K → 20K10728+79#2099#2020
20K → Half126+6#2020#2014
Half → 25K4087-47#2014#2061
25K → 30K21488-467#2061#2528
30K → 20M10295-285#2528#2813
20M → 21M6430+34#2813#2779
21M → 35K6362-356#2779#3135
35K → 23M46115-69#3135#3204
23M → 24M2882-54#3204#3258
24M → 40K2471-47#3258#3305
40K → 25.2M1060-50#3305#3355
25.2M → Finish2969-40#3355#3395
TOTALS6531813-1160
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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