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BOSTON MARATHON 2025

Alejandro Serruto

Bib: 1764•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 19%
Division (M18-39)
#0 / 5642
Top 42%
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
5:59/mi
18:35
↑ 97↓ 3451.5%
10K· 6.21 mi
5:56/mi
37:02
↑ 79↓ 1380.4%
15K· 9.32 mi
5:59/mi
55:36
↑ 67↓ 78
20K· 12.43 mi
6:03/mi
1:14:25
↑ 106↓ 860.1%
Half· 13.11 mi
5:53/mi
1:18:26
↑ 19↓ 370.5%
25K· 15.53 mi
6:00/mi
1:32:59
↑ 66↓ 880.2%
30K· 18.64 mi
6:15/mi
1:52:23
↑ 181↓ 1480.2%
20M
6:40/mi
2:01:27
↑ 64↓ 500.2%
21M
7:23/mi
2:08:50
↑ 106↓ 241.6%
35K· 21.75 mi
7:33/mi
2:14:29
↑ 17↓ 861.7%
23M
9:35/mi
2:26:29
↑ 23↓ 630.6%
24M
9:17/mi
2:35:46
↓ 821.3%
40K· 24.85 mi
8:54/mi
2:43:23
↓ 200.3%
25.2M
9:40/mi
2:46:43
↑ 13↓ 160.2%
Finish· 26.22 mi
8:25/mi
2:55:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:18:26
Pace5:59 /mi
2nd Half
Distance13.11 mi
Time1:36:52
Pace7:23 /mi
📊Positive Split: 23.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:1018:355:5918:35
5:59
-
10K
6.21 mi10:37:3737:025:5818:27
5:56
-0:03
15K
9.32 mi10:56:1155:365:5818:34
5:59
+0:03
20K
12.43 mi11:15:001:14:255:5918:49
6:03
+0:04
Half
13.11 mi11:19:011:18:265:594:01
5:53
-0:10
25K
15.53 mi11:33:341:32:595:5914:33
6:00
+0:07
30K
18.64 mi11:52:581:52:236:0219:24
6:15
+0:15
20M
20.00 mi12:02:022:01:276:049:04
6:40
+0:25
21M
21.00 mi12:09:252:08:506:087:23
7:23
+0:43
35K
21.75 mi12:15:042:14:296:115:39
7:33
+0:10
23M
23.00 mi12:27:042:26:296:2212:00
9:35
+2:02
24M
24.00 mi12:36:212:35:466:299:17
9:17
-0:18
40K
24.85 mi12:43:582:43:236:347:37
8:54
-0:23
25.2M
25.20 mi12:47:182:46:436:373:20
9:40
+0:46
Finish
26.22 mi12:55:532:55:186:418:35
8:25
-1:15

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

5:53 /mi

Average Pace

6:41 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

22:28

13% of race

Time at Steady Pace

1:38:59

56% of race

Time at Slower Pace

53:51

31% of race

Average Pace: 6:41 /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 mi10:19:1018:355:5918:35
5:59
#1029
10K
6.21 mi10:37:3737:025:5818:27
5:56
#976
15K
9.32 mi10:56:1155:365:5818:34
5:59
#966
20K
12.43 mi11:15:001:14:255:5918:49
6:03
#966
Half
13.11 mi11:19:011:18:265:594:01
5:53
#958
25K
15.53 mi11:33:341:32:595:5914:33
6:00
#917
30K
18.64 mi11:52:581:52:236:0219:24
6:15
#899
20M
20.00 mi12:02:022:01:276:049:04
6:40
#955
21M
21.00 mi12:09:252:08:506:087:23
7:23
#1045
35K
21.75 mi12:15:042:14:296:115:39
7:33
#1211
23M
23.00 mi12:27:042:26:296:2212:00
9:35
#1869
24M
24.00 mi12:36:212:35:466:299:17
9:17
#2415
40K
24.85 mi12:43:582:43:236:347:37
8:54
#2773
25.2M
25.20 mi12:47:182:46:436:373:20
9:40
#2914
Finish
26.22 mi12:55:532:55:186:418:35
8:25
#3309
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1029970970966(Top 3%)913(Top 6%)913(Top 16%)
10K6.21 mi3.10 mi976+53918+52918+52941(Top 3%)887(Top 6%)887(Top 16%)
15K9.32 mi3.11 mi966+10910+8910+8966(Top 3%)913(Top 6%)913(Top 16%)
20K12.43 mi3.11 mi9669109101032(Top 4%)973(Top 6%)973(Top 17%)
Half13.11 mi0.68 mi958+8903+7903+7837(Top 3%)791(Top 5%)791(Top 14%)
25K15.53 mi2.42 mi917+41865+38865+38817(Top 3%)767(Top 5%)767(Top 14%)
30K18.64 mi3.11 mi899+18845+20845+201049(Top 4%)986(Top 6%)986(Top 17%)
20M20.00 mi1.36 mi955-56897-52897-522353(Top 8%)2223(Top 14%)2223(Top 39%)
21M21.00 mi1.00 mi1045-90985-88985-884026(Top 14%)3649(Top 23%)3649(Top 65%)
35K21.75 mi0.75 mi1211-1661140-1551140-1558951(Top 32%)6813(Top 42%)6813(Top 121%)
23M23.00 mi1.25 mi1869-6581773-6331773-63319004(Top 67%)11434(Top 71%)11434(Top 203%)
24M24.00 mi1.00 mi2415-5462297-5242297-52418707(Top 66%)11263(Top 70%)11263(Top 200%)
40K24.85 mi0.85 mi2773-3582628-3312628-33115753(Top 55%)9781(Top 61%)9781(Top 173%)
25.2M25.20 mi0.35 mi2914-1412755-1272755-12715335(Top 54%)9530(Top 59%)9530(Top 169%)
Finish26.22 mi1.02 mi3309-3953098-3433098-34315693(Top 55%)9782(Top 61%)9782(Top 173%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21story building
+97ft-345ft

Overall

966

Males

913

M18-39

913

5K→10K

3.1 - 6.2 mi

Top 3%
×5story building
+79ft-138ft

Overall

941

Males

887

M18-39

887

10K→15K

6.2 - 9.3 mi

Top 3%
×3story building
+67ft-78ft

Overall

966

Males

913

M18-39

913

15K→20K

9.3 - 12.4 mi

Top 4%
×5story building
+106ft-86ft

Overall

1032

Males

973

M18-39

973

20K→Half

12.4 - 13.1 mi

Top 3%
×2story building
+19ft-37ft

Overall

837

Males

791

M18-39

791

Half→25K

13.1 - 15.5 mi

Top 3%
×4story building
+66ft-88ft

Overall

817

Males

767

M18-39

767

25K→30K

15.5 - 18.6 mi

Top 4%
×9story building
+181ft-148ft

Overall

1049

Males

986

M18-39

986

30K→20M

18.6 - 20.0 mi

Top 8%
×5story building
+64ft-50ft

Overall

2353

Males

2223

M18-39

2223

20M→21M

20.0 - 21.0 mi

Top 14%
×8story building
+106ft-24ft

Overall

4026

Males

3649

M18-39

3649

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8951

Males

6813

M18-39

6813

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

19004

Males

11434

M18-39

11434

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18707

Males

11263

M18-39

11263

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15753

Males

9781

M18-39

9781

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15335

Males

9530

M18-39

9530

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

15693

Males

9782

M18-39

9782

Passing Analysis

Category:
Athletes Passed
276
Passed By
2556
Net Change
-2280
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1029
5K → 10K7320+53#1029#976
10K → 15K3121+10#976#966
15K → 20K33330#966#966
20K → Half102+8#966#958
Half → 25K5110+41#958#917
25K → 30K5133+18#917#899
30K → 20M1268-56#899#955
20M → 21M494-90#955#1045
21M → 35K1167-166#1045#1211
35K → 23M2660-658#1211#1869
23M → 24M3549-546#1869#2415
24M → 40K2360-358#2415#2773
40K → 25.2M1142-141#2773#2914
25.2M → Finish2397-395#2914#3309
TOTALS2762556-2280
📊

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