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BOSTON MARATHON 2025

Pavel Alexanderov

Bib: 11839•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 48%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
7:08/mi
22:11
↑ 97↓ 3451.5%
10K· 6.21 mi
7:17/mi
44:50
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:07:48
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:31:22
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:36:27
↑ 19↓ 370.5%
25K· 15.53 mi
7:52/mi
1:55:31
↑ 66↓ 880.2%
30K· 18.64 mi
8:58/mi
2:23:23
↑ 181↓ 1480.2%
20M
8:42/mi
2:35:12
↑ 64↓ 500.2%
21M
9:16/mi
2:44:28
↑ 106↓ 241.6%
35K· 21.75 mi
8:36/mi
2:50:54
↑ 17↓ 861.7%
23M
9:00/mi
3:02:10
↑ 23↓ 630.6%
24M
8:54/mi
3:11:04
↓ 821.3%
40K· 24.85 mi
9:10/mi
3:18:54
↓ 200.3%
25.2M
10:00/mi
3:22:21
↑ 13↓ 160.2%
Finish· 26.22 mi
8:49/mi
3:31:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:27
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:54:53
Pace8:46 /mi
📊Positive Split: 19.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:3522:117:0822:11
7:08
-
10K
6.21 mi11:12:1444:507:1322:39
7:17
+0:09
15K
9.32 mi11:35:121:07:487:1622:58
7:24
+0:07
20K
12.43 mi11:58:461:31:227:2123:34
7:35
+0:11
Half
13.11 mi12:03:511:36:277:215:05
7:27
-0:08
25K
15.53 mi12:22:551:55:317:2619:04
7:52
+0:25
30K
18.64 mi12:50:472:23:237:4227:52
8:58
+1:06
20M
20.00 mi13:02:362:35:127:4611:49
8:42
-0:16
21M
21.00 mi13:11:522:44:287:509:16
9:16
+0:34
35K
21.75 mi13:18:182:50:547:516:26
8:36
-0:40
23M
23.00 mi13:29:343:02:107:5511:16
9:00
+0:24
24M
24.00 mi13:38:283:11:047:588:54
8:54
-0:06
40K
24.85 mi13:46:183:18:548:007:50
9:10
+0:16
25.2M
25.20 mi13:49:453:22:218:023:27
10:00
+0:50
Finish
26.22 mi13:58:443:31:208:048:59
8:49
-1:11

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

7:08 /mi

Average Pace

8:04 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:31

55% of race

Time at Steady Pace

1:15:16

36% of race

Time at Slower Pace

20:33

10% of race

Average Pace: 8:04 /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 mi10:49:3522:117:0822:11
7:08
#8971
10K
6.21 mi11:12:1444:507:1322:39
7:17
#9582
15K
9.32 mi11:35:121:07:487:1622:58
7:24
#9987
20K
12.43 mi11:58:461:31:227:2123:34
7:35
#10325
Half
13.11 mi12:03:511:36:277:215:05
7:27
#10365
25K
15.53 mi12:22:551:55:317:2619:04
7:52
#10761
30K
18.64 mi12:50:472:23:237:4227:52
8:58
#12192
20M
20.00 mi13:02:362:35:127:4611:49
8:42
#12408
21M
21.00 mi13:11:522:44:287:509:16
9:16
#12544
35K
21.75 mi13:18:182:50:547:516:26
8:36
#12694
23M
23.00 mi13:29:343:02:107:5511:16
9:00
#12919
24M
24.00 mi13:38:283:11:047:588:54
8:54
#13117
40K
24.85 mi13:46:183:18:548:007:50
9:10
#13282
25.2M
25.20 mi13:49:453:22:218:023:27
10:00
#13337
Finish
26.22 mi13:58:443:31:208:048:59
8:49
#13574
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi89717597759710797(Top 38%)8503(Top 53%)8503(Top 356%)
10K6.21 mi3.10 mi9582-6117954-3577954-35710267(Top 36%)8295(Top 52%)8295(Top 348%)
15K9.32 mi3.11 mi9987-4058124-1708124-17010797(Top 38%)8503(Top 53%)8503(Top 356%)
20K12.43 mi3.11 mi10325-3388276-1528276-15211468(Top 40%)8719(Top 54%)8719(Top 365%)
Half13.11 mi0.68 mi10365-408289-138289-1311299(Top 40%)8710(Top 54%)8710(Top 365%)
25K15.53 mi2.42 mi10761-3968468-1798468-17912854(Top 45%)9227(Top 57%)9227(Top 387%)
30K18.64 mi3.11 mi12192-14319070-6029070-60217506(Top 62%)11148(Top 69%)11148(Top 467%)
20M20.00 mi1.36 mi12408-2169119-499119-4915008(Top 53%)9913(Top 62%)9913(Top 415%)
21M21.00 mi1.00 mi12544-1369152-339152-3314944(Top 53%)9756(Top 61%)9756(Top 409%)
35K21.75 mi0.75 mi12694-1509194-429194-4216022(Top 56%)10174(Top 63%)10174(Top 426%)
23M23.00 mi1.25 mi12919-2259267-739267-7316218(Top 57%)10165(Top 63%)10165(Top 426%)
24M24.00 mi1.00 mi13117-1989310-439310-4316826(Top 59%)10381(Top 64%)10381(Top 435%)
40K24.85 mi0.85 mi13282-1659361-519361-5117151(Top 60%)10441(Top 65%)10441(Top 438%)
25.2M25.20 mi0.35 mi13337-559377-169377-1616977(Top 60%)10342(Top 64%)10342(Top 433%)
Finish26.22 mi1.02 mi13574-2379455-789455-7818102(Top 64%)10909(Top 68%)10909(Top 457%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10797

Males

8503

M45-49

8503

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

10267

Males

8295

M45-49

8295

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10797

Males

8503

M45-49

8503

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11468

Males

8719

M45-49

8719

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

11299

Males

8710

M45-49

8710

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12854

Males

9227

M45-49

9227

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17506

Males

11148

M45-49

11148

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

15008

Males

9913

M45-49

9913

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14944

Males

9756

M45-49

9756

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

16022

Males

10174

M45-49

10174

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

16218

Males

10165

M45-49

10165

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

16826

Males

10381

M45-49

10381

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17151

Males

10441

M45-49

10441

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16977

Males

10342

M45-49

10342

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

18102

Males

10909

M45-49

10909

Passing Analysis

Category:
Athletes Passed
700
Passed By
5299
Net Change
-4603
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8971
5K → 10K66676-611#8971#9582
10K → 15K69473-405#9582#9987
15K → 20K92428-338#9987#10325
20K → Half2262-40#10325#10365
Half → 25K79475-396#10365#10761
25K → 30K341465-1431#10761#12192
30K → 20M68284-216#12192#12408
20M → 21M57193-136#12408#12544
21M → 35K39189-150#12544#12694
35K → 23M57282-225#12694#12919
23M → 24M38236-198#12919#13117
24M → 40K35200-165#13117#13282
40K → 25.2M2479-55#13282#13337
25.2M → Finish20257-237#13337#13574
TOTALS7005299-4603
📊

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