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BOSTON MARATHON 2025

Alain Costa

Bib: 29099•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
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
8:47/mi
27:16
↑ 97↓ 3451.5%
10K· 6.21 mi
8:03/mi
52:18
↑ 79↓ 1380.4%
15K· 9.32 mi
8:15/mi
1:17:55
↑ 67↓ 78
20K· 12.43 mi
8:17/mi
1:43:38
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:49:15
↑ 19↓ 370.5%
25K· 15.53 mi
9:00/mi
2:11:04
↑ 66↓ 880.2%
30K· 18.64 mi
9:19/mi
2:40:00
↑ 181↓ 1480.2%
20M
10:03/mi
2:53:40
↑ 64↓ 500.2%
21M
11:04/mi
3:04:44
↑ 106↓ 241.6%
35K· 21.75 mi
9:41/mi
3:11:59
↑ 17↓ 861.7%
23M
10:20/mi
3:24:55
↑ 23↓ 630.6%
24M
10:32/mi
3:35:27
↓ 821.3%
40K· 24.85 mi
11:35/mi
3:45:21
↓ 200.3%
25.2M
13:03/mi
3:49:51
↑ 13↓ 160.2%
Finish· 26.22 mi
10:39/mi
4:00:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:15
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time2:11:27
Pace10:02 /mi
📊Positive Split: 20.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0127:168:4727:16
8:47
-
10K
6.21 mi12:10:0352:188:2525:02
8:03
-0:44
15K
9.32 mi12:35:401:17:558:2225:37
8:15
+0:12
20K
12.43 mi13:01:231:43:388:2025:43
8:17
+0:02
Half
13.11 mi13:07:001:49:158:205:37
8:14
-0:03
25K
15.53 mi13:28:492:11:048:2621:49
9:00
+0:46
30K
18.64 mi13:57:452:40:008:3528:56
9:19
+0:19
20M
20.00 mi14:11:252:53:408:4113:40
10:03
+0:44
21M
21.00 mi14:22:293:04:448:4811:04
11:04
+1:01
35K
21.75 mi14:29:443:11:598:507:15
9:41
-1:23
23M
23.00 mi14:42:403:24:558:5512:56
10:20
+0:39
24M
24.00 mi14:53:123:35:278:5910:32
10:32
+0:12
40K
24.85 mi15:03:063:45:219:049:54
11:35
+1:03
25.2M
25.20 mi15:07:363:49:519:074:30
13:03
+1:28
Finish
26.22 mi15:18:274:00:429:1110:51
10:39
-2:24

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

8:03 /mi

Average Pace

9:11 /mi

Slowest Pace

13:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:15

45% of race

Time at Steady Pace

1:24:36

35% of race

Time at Slower Pace

46:51

19% of race

Average Pace: 9:11 /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 mi11:45:0127:168:4727:16
8:47
#21373
10K
6.21 mi12:10:0352:188:2525:02
8:03
#19340
15K
9.32 mi12:35:401:17:558:2225:37
8:15
#18789
20K
12.43 mi13:01:231:43:388:2025:43
8:17
#18243
Half
13.11 mi13:07:001:49:158:205:37
8:14
#18191
25K
15.53 mi13:28:492:11:048:2621:49
9:00
#18514
30K
18.64 mi13:57:452:40:008:3528:56
9:19
#18657
20M
20.00 mi14:11:252:53:408:4113:40
10:03
#18921
21M
21.00 mi14:22:293:04:448:4811:04
11:04
#19160
35K
21.75 mi14:29:443:11:598:507:15
9:41
#19263
23M
23.00 mi14:42:403:24:558:5512:56
10:20
#19461
24M
24.00 mi14:53:123:35:278:5910:32
10:32
#19678
40K
24.85 mi15:03:063:45:219:049:54
11:35
#19997
25.2M
25.20 mi15:07:363:49:519:074:30
13:03
#20167
Finish
26.22 mi15:18:274:00:429:1110:51
10:39
#20457
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi21373130291302917690(Top 62%)11509(Top 71%)11509(Top 577%)
10K6.21 mi3.10 mi19340+203312198+83112198+83116892(Top 59%)11205(Top 70%)11205(Top 561%)
15K9.32 mi3.11 mi18789+55111953+24511953+24517690(Top 62%)11509(Top 71%)11509(Top 577%)
20K12.43 mi3.11 mi18243+54611711+24211711+24216802(Top 59%)11091(Top 69%)11091(Top 556%)
Half13.11 mi0.68 mi18191+5211688+2311688+2317478(Top 62%)11417(Top 71%)11417(Top 572%)
25K15.53 mi2.42 mi18514-32311812-12411812-12419882(Top 70%)12360(Top 77%)12360(Top 619%)
30K18.64 mi3.11 mi18657-14311854-4211854-4219168(Top 67%)11912(Top 74%)11912(Top 597%)
20M20.00 mi1.36 mi18921-26411938-8411938-8421133(Top 74%)12645(Top 79%)12645(Top 634%)
21M21.00 mi1.00 mi19160-23912017-7912017-7921570(Top 76%)12764(Top 79%)12764(Top 639%)
35K21.75 mi0.75 mi19263-10312043-2612043-2620962(Top 74%)12424(Top 77%)12424(Top 622%)
23M23.00 mi1.25 mi19461-19812089-4612089-4621510(Top 76%)12629(Top 78%)12629(Top 633%)
24M24.00 mi1.00 mi19678-21712158-6912158-6922900(Top 81%)13251(Top 82%)13251(Top 664%)
40K24.85 mi0.85 mi19997-31912284-12612284-12624264(Top 85%)13903(Top 86%)13903(Top 697%)
25.2M25.20 mi0.35 mi20167-17012358-7412358-7425089(Top 88%)14287(Top 89%)14287(Top 716%)
Finish26.22 mi1.02 mi20457-29012482-12412482-12424602(Top 87%)14079(Top 87%)14079(Top 705%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17690

Males

11509

M50-54

11509

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

16892

Males

11205

M50-54

11205

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17690

Males

11509

M50-54

11509

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

16802

Males

11091

M50-54

11091

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

17478

Males

11417

M50-54

11417

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19882

Males

12360

M50-54

12360

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

19168

Males

11912

M50-54

11912

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

21133

Males

12645

M50-54

12645

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

21570

Males

12764

M50-54

12764

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

20962

Males

12424

M50-54

12424

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

21510

Males

12629

M50-54

12629

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

22900

Males

13251

M50-54

13251

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24264

Males

13903

M50-54

13903

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

25089

Males

14287

M50-54

14287

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

24602

Males

14079

M50-54

14079

Passing Analysis

Category:
Athletes Passed
3752
Passed By
2836
Net Change
+916
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21373
5K → 10K20407+2033#21373#19340
10K → 15K58231+551#19340#18789
15K → 20K56216+546#18789#18243
20K → Half7119+52#18243#18191
Half → 25K81404-323#18191#18514
25K → 30K199342-143#18514#18657
30K → 20M42306-264#18657#18921
20M → 21M41280-239#18921#19160
21M → 35K32135-103#19160#19263
35K → 23M50248-198#19263#19461
23M → 24M24241-217#19461#19678
24M → 40K13332-319#19678#19997
40K → 25.2M6176-170#19997#20167
25.2M → Finish9299-290#20167#20457
TOTALS37522836+916
📊

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