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BOSTON MARATHON 2025

Alexey Sergeev

Bib: 1901•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 22%
Division (M18-39)
#0 / 5642
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:17
Rank: #4038
Start → 5K
20:17 | 6:32/mi
10K· 6.21 mi
40:46
Rank: #4209 (-171)
5K → 10K
20:29 | 6:36/mi
15K· 9.32 mi
1:01:26
Rank: #4330 (-121)
10K → 15K
20:40 | 6:39/mi
20K· 12.43 mi
1:22:17
Rank: #4335 (-5)
15K → 20K
20:51 | 6:43/mi
Half· 13.11 mi
1:26:49
Rank: #4345 (-10)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:43:02
Rank: #4238 (+107)
Half → 25K
16:13 | 6:41/mi
30K· 18.64 mi
2:04:28
Rank: #4132 (+106)
25K → 30K
21:26 | 6:54/mi
20M
2:13:58
Rank: #4095 (+37)
30K → 20M
9:30 | 6:59/mi
21M
2:21:15
Rank: #4037 (+58)
20M → 21M
7:17 | 7:17/mi
35K· 21.75 mi
2:26:26
Rank: #4062 (-25)
21M → 35K
5:11 | 6:56/mi
23M
2:35:25
Rank: #4073 (-11)
35K → 23M
8:59 | 7:10/mi
24M
2:42:17
Rank: #4034 (+39)
23M → 24M
6:52 | 6:52/mi
40K· 24.85 mi
2:48:13
Rank: #3985 (+49)
24M → 40K
5:56 | 6:56/mi
25.2M
2:50:46
Rank: #3952 (+33)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:57:24
Rank: #3858 (+94)
25.2M → Finish
6:38 | 6:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:49
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:30:35
Pace6:55 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4620:176:3220:17
6:32
-
10K
6.21 mi10:41:1540:466:3420:29
6:36
+0:04
15K
9.32 mi11:01:551:01:266:3520:40
6:39
+0:03
20K
12.43 mi11:22:461:22:176:3720:51
6:43
+0:04
Half
13.11 mi11:27:181:26:496:374:32
6:39
-0:04
25K
15.53 mi11:43:311:43:026:3816:13
6:41
+0:02
30K
18.64 mi12:04:572:04:286:4121:26
6:54
+0:13
20M
20.00 mi12:14:272:13:586:429:30
6:59
+0:05
21M
21.00 mi12:21:442:21:156:447:17
7:17
+0:18
35K
21.75 mi12:26:552:26:266:445:11
6:56
-0:21
23M
23.00 mi12:35:542:35:256:458:59
7:10
+0:14
24M
24.00 mi12:42:462:42:176:466:52
6:52
-0:18
40K
24.85 mi12:48:422:48:136:465:56
6:56
+0:04
25.2M
25.20 mi12:51:152:50:466:472:33
7:24
+0:28
Finish
26.22 mi12:57:532:57:246:466:38
6:31
-0:53

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

6:31 /mi

Average Pace

6:46 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:34

94% of race

Time at Steady Pace

9:50

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:46 /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 mi10:20:4620:176:3220:17
6:32
#4038
10K
6.21 mi10:41:1540:466:3420:29
6:36
#4209
15K
9.32 mi11:01:551:01:266:3520:40
6:39
#4330
20K
12.43 mi11:22:461:22:176:3720:51
6:43
#4335
Half
13.11 mi11:27:181:26:496:374:32
6:39
#4345
25K
15.53 mi11:43:311:43:026:3816:13
6:41
#4238
30K
18.64 mi12:04:572:04:286:4121:26
6:54
#4132
20M
20.00 mi12:14:272:13:586:429:30
6:59
#4095
21M
21.00 mi12:21:442:21:156:447:17
7:17
#4037
35K
21.75 mi12:26:552:26:266:445:11
6:56
#4062
23M
23.00 mi12:35:542:35:256:458:59
7:10
#4073
24M
24.00 mi12:42:462:42:176:466:52
6:52
#4034
40K
24.85 mi12:48:422:48:136:465:56
6:56
#3985
25.2M
25.20 mi12:51:152:50:466:472:33
7:24
#3952
Finish
26.22 mi12:57:532:57:246:466:38
6:31
#3858
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4038380838084643(Top 16%)4344(Top 27%)4344(Top 77%)
10K6.21 mi3.10 mi4209-1713960-1523960-1524410(Top 16%)4135(Top 26%)4135(Top 73%)
15K9.32 mi3.11 mi4330-1214072-1124072-1124643(Top 16%)4344(Top 27%)4344(Top 77%)
20K12.43 mi3.11 mi4335-54073-14073-14507(Top 16%)4194(Top 26%)4194(Top 74%)
Half13.11 mi0.68 mi4345-104078-54078-54721(Top 17%)4381(Top 27%)4381(Top 78%)
25K15.53 mi2.42 mi4238+1073978+1003978+1004036(Top 14%)3760(Top 23%)3760(Top 67%)
30K18.64 mi3.11 mi4132+1063872+1063872+1064053(Top 14%)3729(Top 23%)3729(Top 66%)
20M20.00 mi1.36 mi4095+373833+393833+394030(Top 14%)3690(Top 23%)3690(Top 65%)
21M21.00 mi1.00 mi4037+583780+533780+533526(Top 12%)3225(Top 20%)3225(Top 57%)
35K21.75 mi0.75 mi4062-253794-143794-144861(Top 17%)4273(Top 27%)4273(Top 76%)
23M23.00 mi1.25 mi4073-113789+53789+54696(Top 17%)4093(Top 25%)4093(Top 73%)
24M24.00 mi1.00 mi4034+393749+403749+403881(Top 14%)3434(Top 21%)3434(Top 61%)
40K24.85 mi0.85 mi3985+493699+503699+503539(Top 12%)3135(Top 19%)3135(Top 56%)
25.2M25.20 mi0.35 mi3952+333666+333666+332892(Top 10%)2571(Top 16%)2571(Top 46%)
Finish26.22 mi1.02 mi3858+943572+943572+942859(Top 10%)2554(Top 16%)2554(Top 45%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4643

Males

4344

M18-39

4344

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4410

Males

4135

M18-39

4135

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4643

Males

4344

M18-39

4344

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4507

Males

4194

M18-39

4194

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4721

Males

4381

M18-39

4381

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

4036

Males

3760

M18-39

3760

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

4053

Males

3729

M18-39

3729

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

4030

Males

3690

M18-39

3690

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3526

Males

3225

M18-39

3225

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4861

Males

4273

M18-39

4273

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4696

Males

4093

M18-39

4093

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3881

Males

3434

M18-39

3434

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3539

Males

3135

M18-39

3135

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2892

Males

2571

M18-39

2571

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2859

Males

2554

M18-39

2554

Passing Analysis

Category:
Athletes Passed
1132
Passed By
952
Net Change
+180
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4038
5K → 10K86257-171#4038#4209
10K → 15K58179-121#4209#4330
15K → 20K100105-5#4330#4335
20K → Half1626-10#4335#4345
Half → 25K13730+107#4345#4238
25K → 30K19589+106#4238#4132
30K → 20M8043+37#4132#4095
20M → 21M8022+58#4095#4037
21M → 35K3560-25#4037#4062
35K → 23M6475-11#4062#4073
23M → 24M6526+39#4073#4034
24M → 40K6920+49#4034#3985
40K → 25.2M374+33#3985#3952
25.2M → Finish11016+94#3952#3858
TOTALS1132952+180
📊

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