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BOSTON MARATHON 2025

Sergej Filippov

Bib: 8118•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 29%
Masters (Masters Men)
#0 / 10463
Top 15%
Division (M50-54)
#0 / 1996
Top 9%
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
6:54/mi
21:27
↑ 97↓ 3451.5%
10K· 6.21 mi
6:50/mi
42:42
↑ 79↓ 1380.4%
15K· 9.32 mi
6:45/mi
1:03:40
↑ 67↓ 78
20K· 12.43 mi
6:50/mi
1:24:53
↑ 106↓ 860.1%
Half· 13.11 mi
6:37/mi
1:29:24
↑ 19↓ 370.5%
25K· 15.53 mi
6:55/mi
1:46:10
↑ 66↓ 880.2%
30K· 18.64 mi
7:05/mi
2:08:10
↑ 181↓ 1480.2%
20M
7:10/mi
2:17:55
↑ 64↓ 500.2%
21M
7:30/mi
2:25:25
↑ 106↓ 241.6%
35K· 21.75 mi
6:54/mi
2:30:35
↑ 17↓ 861.7%
23M
7:08/mi
2:39:31
↑ 23↓ 630.6%
24M
6:58/mi
2:46:29
↓ 821.3%
40K· 24.85 mi
7:01/mi
2:52:29
↓ 200.3%
25.2M
7:47/mi
2:55:10
↑ 13↓ 160.2%
Finish· 26.22 mi
6:44/mi
3:02:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:24
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:32:38
Pace7:04 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:0921:276:5421:27
6:54
-
10K
6.21 mi10:51:2442:426:5221:15
6:50
-0:04
15K
9.32 mi11:12:221:03:406:5020:58
6:45
-0:05
20K
12.43 mi11:33:351:24:536:5021:13
6:50
+0:05
Half
13.11 mi11:38:061:29:246:494:31
6:37
-0:13
25K
15.53 mi11:54:521:46:106:5016:46
6:55
+0:18
30K
18.64 mi12:16:522:08:106:5322:00
7:05
+0:10
20M
20.00 mi12:26:372:17:556:549:45
7:10
+0:05
21M
21.00 mi12:34:072:25:256:557:30
7:30
+0:20
35K
21.75 mi12:39:172:30:356:555:10
6:54
-0:36
23M
23.00 mi12:48:132:39:316:568:56
7:08
+0:14
24M
24.00 mi12:55:112:46:296:566:58
6:58
-0:10
40K
24.85 mi13:01:112:52:296:566:00
7:01
+0:03
25.2M
25.20 mi13:03:522:55:106:572:41
7:47
+0:46
Finish
26.22 mi13:10:443:02:026:576:52
6:44
-1:03

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

6:37 /mi

Average Pace

6:57 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:51

94% of race

Time at Steady Pace

10:11

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:57 /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 mi10:30:0921:276:5421:27
6:54
#7095
10K
6.21 mi10:51:2442:426:5221:15
6:50
#6939
15K
9.32 mi11:12:221:03:406:5020:58
6:45
#6486
20K
12.43 mi11:33:351:24:536:5021:13
6:50
#6225
Half
13.11 mi11:38:061:29:246:494:31
6:37
#6115
25K
15.53 mi11:54:521:46:106:5016:46
6:55
#6014
30K
18.64 mi12:16:522:08:106:5322:00
7:05
#5784
20M
20.00 mi12:26:372:17:556:549:45
7:10
#5710
21M
21.00 mi12:34:072:25:256:557:30
7:30
#5609
35K
21.75 mi12:39:172:30:356:555:10
6:54
#5559
23M
23.00 mi12:48:132:39:316:568:56
7:08
#5412
24M
24.00 mi12:55:112:46:296:566:58
6:58
#5336
40K
24.85 mi13:01:112:52:296:566:00
7:01
#5233
25.2M
25.20 mi13:03:522:55:106:572:41
7:47
#5205
Finish
26.22 mi13:10:443:02:026:576:52
6:44
#5123
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi7095637463745547(Top 20%)5079(Top 32%)5079(Top 254%)
10K6.21 mi3.10 mi6939+1566249+1256249+1256764(Top 24%)6093(Top 38%)6093(Top 305%)
15K9.32 mi3.11 mi6486+4535880+3695880+3695547(Top 20%)5079(Top 32%)5079(Top 254%)
20K12.43 mi3.11 mi6225+2615661+2195661+2195574(Top 20%)5081(Top 32%)5081(Top 255%)
Half13.11 mi0.68 mi6115+1105572+895572+894565(Top 16%)4258(Top 26%)4258(Top 213%)
25K15.53 mi2.42 mi6014+1015471+1015471+1015762(Top 20%)5206(Top 32%)5206(Top 261%)
30K18.64 mi3.11 mi5784+2305263+2085263+2085200(Top 18%)4701(Top 29%)4701(Top 236%)
20M20.00 mi1.36 mi5710+745199+645199+645052(Top 18%)4519(Top 28%)4519(Top 226%)
21M21.00 mi1.00 mi5609+1015109+905109+904600(Top 16%)4070(Top 25%)4070(Top 204%)
35K21.75 mi0.75 mi5559+505059+505059+504744(Top 17%)4187(Top 26%)4187(Top 210%)
23M23.00 mi1.25 mi5412+1474925+1344925+1344508(Top 16%)3959(Top 25%)3959(Top 198%)
24M24.00 mi1.00 mi5336+764856+694856+694431(Top 16%)3852(Top 24%)3852(Top 193%)
40K24.85 mi0.85 mi5233+1034757+994757+994009(Top 14%)3497(Top 22%)3497(Top 175%)
25.2M25.20 mi0.35 mi5205+284729+284729+284718(Top 17%)3916(Top 24%)3916(Top 196%)
Finish26.22 mi1.02 mi5123+824649+804649+804109(Top 14%)3512(Top 22%)3512(Top 176%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21story building
+97ft-345ft

Overall

5547

Males

5079

M50-54

5079

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

6764

Males

6093

M50-54

6093

10K→15K

6.2 - 9.3 mi

Top 20%
×3story building
+67ft-78ft

Overall

5547

Males

5079

M50-54

5079

15K→20K

9.3 - 12.4 mi

Top 20%
×5story building
+106ft-86ft

Overall

5574

Males

5081

M50-54

5081

20K→Half

12.4 - 13.1 mi

Top 16%
×2story building
+19ft-37ft

Overall

4565

Males

4258

M50-54

4258

Half→25K

13.1 - 15.5 mi

Top 20%
×4story building
+66ft-88ft

Overall

5762

Males

5206

M50-54

5206

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

5200

Males

4701

M50-54

4701

30K→20M

18.6 - 20.0 mi

Top 18%
×5story building
+64ft-50ft

Overall

5052

Males

4519

M50-54

4519

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4600

Males

4070

M50-54

4070

21M→35K

21.0 - 21.8 mi

Top 17%
×7story building
+17ft-86ft

Overall

4744

Males

4187

M50-54

4187

35K→23M

21.8 - 23.0 mi

Top 16%
×5story building
+23ft-63ft

Overall

4508

Males

3959

M50-54

3959

23M→24M

23.0 - 24.0 mi

Top 16%
×6story building
+12ft-82ft

Overall

4431

Males

3852

M50-54

3852

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

4009

Males

3497

M50-54

3497

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4718

Males

3916

M50-54

3916

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2story building
+22ft-21ft

Overall

4109

Males

3512

M50-54

3512

Passing Analysis

Category:
Athletes Passed
2388
Passed By
416
Net Change
+1972
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7095
5K → 10K274118+156#7095#6939
10K → 15K47118+453#6939#6486
15K → 20K28221+261#6486#6225
20K → Half1100+110#6225#6115
Half → 25K16968+101#6115#6014
25K → 30K30171+230#6014#5784
30K → 20M10632+74#5784#5710
20M → 21M12524+101#5710#5609
21M → 35K599+50#5609#5559
35K → 23M16922+147#5559#5412
23M → 24M9014+76#5412#5336
24M → 40K1063+103#5336#5233
40K → 25.2M357+28#5233#5205
25.2M → Finish919+82#5205#5123
TOTALS2388416+1972
📊

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