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BOSTON MARATHON 2025

David Aldana

Bib: 12006•M

LA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 45%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 48%
Division (M50-54)
#0 / 1996
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
7:34/mi
23:29
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
47:26
↑ 79↓ 1380.4%
15K· 9.32 mi
7:48/mi
1:11:40
↑ 67↓ 78
20K· 12.43 mi
7:51/mi
1:36:04
↑ 106↓ 860.1%
Half· 13.11 mi
7:46/mi
1:41:22
↑ 19↓ 370.5%
25K· 15.53 mi
7:55/mi
2:00:34
↑ 66↓ 880.2%
30K· 18.64 mi
8:13/mi
2:26:06
↑ 181↓ 1480.2%
20M
8:23/mi
2:37:29
↑ 64↓ 500.2%
21M
8:45/mi
2:46:14
↑ 106↓ 241.6%
35K· 21.75 mi
7:55/mi
2:52:09
↑ 17↓ 861.7%
23M
8:15/mi
3:02:29
↑ 23↓ 630.6%
24M
8:11/mi
3:10:40
↓ 821.3%
40K· 24.85 mi
8:15/mi
3:17:43
↓ 200.3%
25.2M
8:59/mi
3:20:49
↑ 13↓ 160.2%
Finish· 26.22 mi
7:45/mi
3:28:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:22
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:47:21
Pace8:11 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4723:297:3423:29
7:34
-
10K
6.21 mi11:14:4447:267:3823:57
7:43
+0:09
15K
9.32 mi11:38:581:11:407:4124:14
7:48
+0:05
20K
12.43 mi12:03:221:36:047:4424:24
7:51
+0:03
Half
13.11 mi12:08:401:41:227:445:18
7:46
-0:05
25K
15.53 mi12:27:522:00:347:4619:12
7:55
+0:09
30K
18.64 mi12:53:242:26:067:5025:32
8:13
+0:18
20M
20.00 mi13:04:472:37:297:5211:23
8:23
+0:10
21M
21.00 mi13:13:322:46:147:558:45
8:45
+0:22
35K
21.75 mi13:19:272:52:097:555:55
7:55
-0:50
23M
23.00 mi13:29:473:02:297:5610:20
8:15
+0:20
24M
24.00 mi13:37:583:10:407:578:11
8:11
-0:04
40K
24.85 mi13:45:013:17:437:577:03
8:15
+0:04
25.2M
25.20 mi13:48:073:20:497:583:06
8:59
+0:44
Finish
26.22 mi13:56:013:28:437:587:54
7:45
-1:14

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

7:34 /mi

Average Pace

7:58 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:29

89% of race

Time at Steady Pace

20:08

10% of race

Time at Slower Pace

3:06

1% of race

Average Pace: 7:58 /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 mi10:50:4723:297:3423:29
7:34
#12726
10K
6.21 mi11:14:4447:267:3823:57
7:43
#13335
15K
9.32 mi11:38:581:11:407:4124:14
7:48
#13647
20K
12.43 mi12:03:221:36:047:4424:24
7:51
#13613
Half
13.11 mi12:08:401:41:227:445:18
7:46
#13644
25K
15.53 mi12:27:522:00:347:4619:12
7:55
#13537
30K
18.64 mi12:53:242:26:067:5025:32
8:13
#13392
20M
20.00 mi13:04:472:37:297:5211:23
8:23
#13328
21M
21.00 mi13:13:322:46:147:558:45
8:45
#13215
35K
21.75 mi13:19:272:52:097:555:55
7:55
#13141
23M
23.00 mi13:29:473:02:297:5610:20
8:15
#13029
24M
24.00 mi13:37:583:10:407:578:11
8:11
#12996
40K
24.85 mi13:45:013:17:437:577:03
8:15
#12931
25.2M
25.20 mi13:48:073:20:497:583:06
8:59
#12914
Finish
26.22 mi13:56:013:28:437:587:54
7:45
#12814
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi127269516951614359(Top 51%)10074(Top 63%)10074(Top 505%)
10K6.21 mi3.10 mi13335-6099748-2329748-23213960(Top 49%)9981(Top 62%)9981(Top 500%)
15K9.32 mi3.11 mi13647-3129838-909838-9014359(Top 51%)10074(Top 63%)10074(Top 505%)
20K12.43 mi3.11 mi13613+349782+569782+5613698(Top 48%)9729(Top 60%)9729(Top 487%)
Half13.11 mi0.68 mi13644-319792-109792-1013913(Top 49%)9857(Top 61%)9857(Top 494%)
25K15.53 mi2.42 mi13537+1079713+799713+7913231(Top 47%)9405(Top 58%)9405(Top 471%)
30K18.64 mi3.11 mi13392+1459589+1249589+12412948(Top 46%)9115(Top 57%)9115(Top 457%)
20M20.00 mi1.36 mi13328+649531+589531+5812975(Top 46%)8977(Top 56%)8977(Top 450%)
21M21.00 mi1.00 mi13215+1139447+849447+8411964(Top 42%)8360(Top 52%)8360(Top 419%)
35K21.75 mi0.75 mi13141+749405+429405+4211610(Top 41%)8145(Top 51%)8145(Top 408%)
23M23.00 mi1.25 mi13029+1129309+969309+9611721(Top 41%)8102(Top 50%)8102(Top 406%)
24M24.00 mi1.00 mi12996+339257+529257+5212445(Top 44%)8396(Top 52%)8396(Top 421%)
40K24.85 mi0.85 mi12931+659199+589199+5811818(Top 42%)7969(Top 49%)7969(Top 399%)
25.2M25.20 mi0.35 mi12914+179185+149185+1411716(Top 41%)7850(Top 49%)7850(Top 393%)
Finish26.22 mi1.02 mi12814+1009119+669119+6611078(Top 39%)7555(Top 47%)7555(Top 379%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

14359

Males

10074

M50-54

10074

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13960

Males

9981

M50-54

9981

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

14359

Males

10074

M50-54

10074

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

13698

Males

9729

M50-54

9729

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13913

Males

9857

M50-54

9857

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

13231

Males

9405

M50-54

9405

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

12948

Males

9115

M50-54

9115

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

12975

Males

8977

M50-54

8977

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11964

Males

8360

M50-54

8360

21M→35K

21.0 - 21.8 mi

Top 41%
×7story building
+17ft-86ft

Overall

11610

Males

8145

M50-54

8145

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

11721

Males

8102

M50-54

8102

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

12445

Males

8396

M50-54

8396

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11818

Males

7969

M50-54

7969

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11716

Males

7850

M50-54

7850

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

11078

Males

7555

M50-54

7555

Passing Analysis

Category:
Athletes Passed
1895
Passed By
1983
Net Change
-88
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12726
5K → 10K89698-609#12726#13335
10K → 15K119431-312#13335#13647
15K → 20K210176+34#13647#13613
20K → Half2354-31#13613#13644
Half → 25K225118+107#13644#13537
25K → 30K305160+145#13537#13392
30K → 20M14278+64#13392#13328
20M → 21M16148+113#13328#13215
21M → 35K9622+74#13215#13141
35K → 23M15947+112#13141#13029
23M → 24M9259+33#13029#12996
24M → 40K10035+65#12996#12931
40K → 25.2M4225+17#12931#12914
25.2M → Finish13232+100#12914#12814
TOTALS18951983-88
📊

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