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BOSTON MARATHON 2025

Andrew Bostian

Bib: 31470•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:02
Rank: #23706
Start → 5K
29:02 | 9:21/mi
10K· 6.21 mi
56:47
Rank: #22975 (+731)
5K → 10K
27:45 | 8:56/mi
15K· 9.32 mi
1:23:56
Rank: #22298 (+677)
10K → 15K
27:09 | 8:44/mi
20K· 12.43 mi
1:52:26
Rank: #22144 (+154)
15K → 20K
28:30 | 9:10/mi
Half· 13.11 mi
1:58:42
Rank: #22156 (-12)
20K → Half
6:16 | 9:11/mi
25K· 15.53 mi
2:21:46
Rank: #22131 (+25)
Half → 25K
23:04 | 9:31/mi
30K· 18.64 mi
2:52:48
Rank: #22053 (+78)
25K → 30K
31:02 | 9:59/mi
20M
3:06:37
Rank: #22000 (+53)
30K → 20M
13:49 | 10:10/mi
21M
3:16:53
Rank: #21823 (+177)
20M → 21M
10:16 | 10:16/mi
35K· 21.75 mi
3:24:29
Rank: #21839 (-16)
21M → 35K
7:36 | 10:10/mi
23M
3:37:41
Rank: #21836 (+3)
35K → 23M
13:12 | 10:33/mi
24M
3:48:05
Rank: #21867 (-31)
23M → 24M
10:24 | 10:24/mi
40K· 24.85 mi
3:56:48
Rank: #21826 (+41)
24M → 40K
8:43 | 10:12/mi
25.2M
4:00:18
Rank: #21764 (+62)
40K → 25.2M
3:30 | 10:09/mi
Finish· 26.22 mi
4:09:11
Rank: #21630 (+134)
25.2M → Finish
8:53 | 8:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:42
Pace9:03 /mi
2nd Half
Distance13.11 mi
Time2:10:29
Pace9:57 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:3129:029:2129:02
9:21
-
10K
6.21 mi12:19:1656:479:0827:45
8:56
-0:25
15K
9.32 mi12:46:251:23:569:0027:09
8:44
-0:12
20K
12.43 mi13:14:551:52:269:0328:30
9:10
+0:26
Half
13.11 mi13:21:111:58:429:036:16
9:11
+0:01
25K
15.53 mi13:44:152:21:469:0823:04
9:31
+0:20
30K
18.64 mi14:15:172:52:489:1631:02
9:59
+0:28
20M
20.00 mi14:29:063:06:379:2013:49
10:10
+0:11
21M
21.00 mi14:39:223:16:539:2310:16
10:16
+0:06
35K
21.75 mi14:46:583:24:299:247:36
10:10
-0:06
23M
23.00 mi15:00:103:37:419:2813:12
10:33
+0:23
24M
24.00 mi15:10:343:48:059:3010:24
10:24
-0:09
40K
24.85 mi15:19:173:56:489:328:43
10:12
-0:12
25.2M
25.20 mi15:22:474:00:189:323:30
10:09
-0:03
Finish
26.22 mi15:31:404:09:119:318:53
8:43
-1:26

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

8:43 /mi

Average Pace

9:31 /mi

Slowest Pace

10:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:39

60% of race

Time at Steady Pace

1:14:56

30% of race

Time at Slower Pace

23:36

9% of race

Average Pace: 9:30 /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 mi11:51:3129:029:2129:02
9:21
#23706
10K
6.21 mi12:19:1656:479:0827:45
8:56
#22975
15K
9.32 mi12:46:251:23:569:0027:09
8:44
#22298
20K
12.43 mi13:14:551:52:269:0328:30
9:10
#22144
Half
13.11 mi13:21:111:58:429:036:16
9:11
#22156
25K
15.53 mi13:44:152:21:469:0823:04
9:31
#22131
30K
18.64 mi14:15:172:52:489:1631:02
9:59
#22053
20M
20.00 mi14:29:063:06:379:2013:49
10:10
#22000
21M
21.00 mi14:39:223:16:539:2310:16
10:16
#21823
35K
21.75 mi14:46:583:24:299:247:36
10:10
#21839
23M
23.00 mi15:00:103:37:419:2813:12
10:33
#21836
24M
24.00 mi15:10:343:48:059:3010:24
10:24
#21867
40K
24.85 mi15:19:173:56:489:328:43
10:12
#21826
25.2M
25.20 mi15:22:474:00:189:323:30
10:09
#21764
Finish
26.22 mi15:31:404:09:119:318:53
8:43
#21630
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi23706141051410520682(Top 73%)12806(Top 80%)12806(Top 570%)
10K6.21 mi3.10 mi22975+73113776+32913776+32922084(Top 78%)13383(Top 83%)13383(Top 596%)
15K9.32 mi3.11 mi22298+67713484+29213484+29220682(Top 73%)12806(Top 80%)12806(Top 570%)
20K12.43 mi3.11 mi22144+15413407+7713407+7721785(Top 77%)13254(Top 82%)13254(Top 590%)
Half13.11 mi0.68 mi22156-1213414-713414-722510(Top 79%)13556(Top 84%)13556(Top 603%)
25K15.53 mi2.42 mi22131+2513401+1313401+1321902(Top 77%)13241(Top 82%)13241(Top 589%)
30K18.64 mi3.11 mi22053+7813343+5813343+5821572(Top 76%)12975(Top 81%)12975(Top 577%)
20M20.00 mi1.36 mi22000+5313302+4113302+4121470(Top 76%)12803(Top 79%)12803(Top 570%)
21M21.00 mi1.00 mi21823+17713199+10313199+10319246(Top 68%)11736(Top 73%)11736(Top 522%)
35K21.75 mi0.75 mi21839-1613193+613193+622311(Top 79%)13059(Top 81%)13059(Top 581%)
23M23.00 mi1.25 mi21836+313150+4313150+4322121(Top 78%)12936(Top 80%)12936(Top 576%)
24M24.00 mi1.00 mi21867-3113143+713143+722526(Top 79%)13068(Top 81%)13068(Top 582%)
40K24.85 mi0.85 mi21826+4113102+4113102+4121058(Top 74%)12311(Top 76%)12311(Top 548%)
25.2M25.20 mi0.35 mi21764+6213071+3113071+3117675(Top 62%)10698(Top 66%)10698(Top 476%)
Finish26.22 mi1.02 mi21630+13412998+7312998+7317577(Top 62%)10680(Top 66%)10680(Top 475%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

20682

Males

12806

M40-44

12806

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

22084

Males

13383

M40-44

13383

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

20682

Males

12806

M40-44

12806

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

21785

Males

13254

M40-44

13254

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

22510

Males

13556

M40-44

13556

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

21902

Males

13241

M40-44

13241

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

21572

Males

12975

M40-44

12975

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

21470

Males

12803

M40-44

12803

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

19246

Males

11736

M40-44

11736

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

22311

Males

13059

M40-44

13059

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

22121

Males

12936

M40-44

12936

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

22526

Males

13068

M40-44

13068

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

21058

Males

12311

M40-44

12311

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17675

Males

10698

M40-44

10698

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17577

Males

10680

M40-44

10680

Passing Analysis

Category:
Athletes Passed
2852
Passed By
776
Net Change
+2076
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23706
5K → 10K77342+731#23706#22975
10K → 15K6847+677#22975#22298
15K → 20K24995+154#22298#22144
20K → Half2941-12#22144#22156
Half → 25K161136+25#22156#22131
25K → 30K221143+78#22131#22053
30K → 20M11562+53#22053#22000
20M → 21M1858+177#22000#21823
21M → 35K4157-16#21823#21839
35K → 23M8481+3#21839#21836
23M → 24M4273-31#21836#21867
24M → 40K6423+41#21867#21826
40K → 25.2M631+62#21826#21764
25.2M → Finish1417+134#21764#21630
TOTALS2852776+2076
📊

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