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BOSTON MARATHON 2025

Sergey Semenov

Bib: 7141•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 28%
Gender (Male)
#0 / 16105
Top 41%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:24
Rank: #4334
Start → 5K
20:24 | 6:34/mi
10K· 6.21 mi
41:01
Rank: #4516 (-182)
5K → 10K
20:37 | 6:38/mi
15K· 9.32 mi
1:02:00
Rank: #4819 (-303)
10K → 15K
20:59 | 6:45/mi
20K· 12.43 mi
1:23:32
Rank: #5184 (-365)
15K → 20K
21:32 | 6:56/mi
Half· 13.11 mi
1:28:18
Rank: #5332 (-148)
20K → Half
4:46 | 6:59/mi
25K· 15.53 mi
1:45:50
Rank: #5830 (-498)
Half → 25K
17:32 | 7:14/mi
30K· 18.64 mi
2:09:36
Rank: #6341 (-511)
25K → 30K
23:46 | 7:39/mi
20M
2:20:41
Rank: #6600 (-259)
30K → 20M
11:05 | 8:09/mi
21M
2:29:13
Rank: #6733 (-133)
20M → 21M
8:32 | 8:32/mi
35K· 21.75 mi
2:35:29
Rank: #7002 (-269)
21M → 35K
6:16 | 8:23/mi
23M
2:45:58
Rank: #7209 (-207)
35K → 23M
10:29 | 8:22/mi
24M
2:54:23
Rank: #7457 (-248)
23M → 24M
8:25 | 8:25/mi
40K· 24.85 mi
3:01:40
Rank: #7654 (-197)
24M → 40K
7:17 | 8:31/mi
25.2M
3:05:15
Rank: #7852 (-198)
40K → 25.2M
3:35 | 10:23/mi
Finish· 26.22 mi
3:13:21
Rank: #8012 (-160)
25.2M → Finish
8:06 | 7:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:18
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:45:03
Pace8:01 /mi
📊Positive Split: 19.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:0120:246:3420:24
6:34
-
10K
6.21 mi10:46:3841:016:3620:37
6:38
+0:04
15K
9.32 mi11:07:371:02:006:3920:59
6:45
+0:07
20K
12.43 mi11:29:091:23:326:4321:32
6:56
+0:11
Half
13.11 mi11:33:551:28:186:444:46
6:59
+0:03
25K
15.53 mi11:51:271:45:506:4917:32
7:14
+0:15
30K
18.64 mi12:15:132:09:366:5723:46
7:39
+0:25
20M
20.00 mi12:26:182:20:417:0211:05
8:09
+0:30
21M
21.00 mi12:34:502:29:137:068:32
8:32
+0:23
35K
21.75 mi12:41:062:35:297:096:16
8:23
-0:09
23M
23.00 mi12:51:352:45:587:1310:29
8:22
-0:01
24M
24.00 mi13:00:002:54:237:168:25
8:25
+0:03
40K
24.85 mi13:07:173:01:407:197:17
8:31
+0:06
25.2M
25.20 mi13:10:523:05:157:213:35
10:23
+1:52
Finish
26.22 mi13:18:583:13:217:238:06
7:57
-2:26

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

6:34 /mi

Average Pace

7:23 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:50

55% of race

Time at Steady Pace

1:08:07

35% of race

Time at Slower Pace

19:24

10% of race

Average Pace: 7:22 /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 mi10:26:0120:246:3420:24
6:34
#4334
10K
6.21 mi10:46:3841:016:3620:37
6:38
#4516
15K
9.32 mi11:07:371:02:006:3920:59
6:45
#4819
20K
12.43 mi11:29:091:23:326:4321:32
6:56
#5184
Half
13.11 mi11:33:551:28:186:444:46
6:59
#5332
25K
15.53 mi11:51:271:45:506:4917:32
7:14
#5830
30K
18.64 mi12:15:132:09:366:5723:46
7:39
#6341
20M
20.00 mi12:26:182:20:417:0211:05
8:09
#6600
21M
21.00 mi12:34:502:29:137:068:32
8:32
#6733
35K
21.75 mi12:41:062:35:297:096:16
8:23
#7002
23M
23.00 mi12:51:352:45:587:1310:29
8:22
#7209
24M
24.00 mi13:00:002:54:237:168:25
8:25
#7457
40K
24.85 mi13:07:173:01:407:197:17
8:31
#7654
25.2M
25.20 mi13:10:523:05:157:213:35
10:23
#7852
Finish
26.22 mi13:18:583:13:217:238:06
7:57
#8012
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4334407540755645(Top 20%)5162(Top 32%)5162(Top 91%)
10K6.21 mi3.10 mi4516-1824244-1694244-1694764(Top 17%)4461(Top 28%)4461(Top 79%)
15K9.32 mi3.11 mi4819-3034505-2614505-2615645(Top 20%)5162(Top 32%)5162(Top 91%)
20K12.43 mi3.11 mi5184-3654804-2994804-2996434(Top 23%)5774(Top 36%)5774(Top 102%)
Half13.11 mi0.68 mi5332-1484934-1304934-1307479(Top 26%)6569(Top 41%)6569(Top 116%)
25K15.53 mi2.42 mi5830-4985326-3925326-3927820(Top 28%)6649(Top 41%)6649(Top 118%)
30K18.64 mi3.11 mi6341-5115704-3785704-3788808(Top 31%)7034(Top 44%)7034(Top 125%)
20M20.00 mi1.36 mi6600-2595884-1805884-18011468(Top 40%)8257(Top 51%)8257(Top 146%)
21M21.00 mi1.00 mi6733-1335962-785962-7810654(Top 38%)7686(Top 48%)7686(Top 136%)
35K21.75 mi0.75 mi7002-2696142-1806142-18014679(Top 52%)9561(Top 59%)9561(Top 169%)
23M23.00 mi1.25 mi7209-2076230-886230-8812472(Top 44%)8450(Top 52%)8450(Top 150%)
24M24.00 mi1.00 mi7457-2486359-1296359-12913950(Top 49%)9100(Top 57%)9100(Top 161%)
40K24.85 mi0.85 mi7654-1976452-936452-9313502(Top 48%)8746(Top 54%)8746(Top 155%)
25.2M25.20 mi0.35 mi7852-1986568-1166568-11618540(Top 65%)11072(Top 69%)11072(Top 196%)
Finish26.22 mi1.02 mi8012-1606638-706638-7012500(Top 44%)8272(Top 51%)8272(Top 147%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5645

Males

5162

M18-39

5162

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4764

Males

4461

M18-39

4461

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5645

Males

5162

M18-39

5162

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6434

Males

5774

M18-39

5774

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

7479

Males

6569

M18-39

6569

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7820

Males

6649

M18-39

6649

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8808

Males

7034

M18-39

7034

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

11468

Males

8257

M18-39

8257

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10654

Males

7686

M18-39

7686

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

14679

Males

9561

M18-39

9561

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

12472

Males

8450

M18-39

8450

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

13950

Males

9100

M18-39

9100

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13502

Males

8746

M18-39

8746

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18540

Males

11072

M18-39

11072

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

12500

Males

8272

M18-39

8272

Passing Analysis

Category:
Athletes Passed
500
Passed By
4178
Net Change
-3678
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4334
5K → 10K79261-182#4334#4516
10K → 15K41344-303#4516#4819
15K → 20K47412-365#4819#5184
20K → Half7155-148#5184#5332
Half → 25K35533-498#5332#5830
25K → 30K63574-511#5830#6341
30K → 20M44303-259#6341#6600
20M → 21M32165-133#6600#6733
21M → 35K15284-269#6733#7002
35K → 23M40247-207#7002#7209
23M → 24M24272-248#7209#7457
24M → 40K33230-197#7457#7654
40K → 25.2M4202-198#7654#7852
25.2M → Finish36196-160#7852#8012
TOTALS5004178-3678
📊

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