Boston Marathon logo
BOSTON MARATHON 2025

Nilson Rocha

Bib: 1391•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 4%
Gender (Male)
#0 / 16105
Top 6%
Division (M18-39)
#0 / 5642
Top 15%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:28
Rank: #914
Start → 5K
18:28 | 5:57/mi
10K· 6.21 mi
37:03
Rank: #985 (-71)
5K → 10K
18:35 | 5:59/mi
15K· 9.32 mi
55:52
Rank: #1028 (-43)
10K → 15K
18:49 | 6:03/mi
20K· 12.43 mi
1:14:52
Rank: #1061 (-33)
15K → 20K
19:00 | 6:07/mi
Half· 13.11 mi
1:18:57
Rank: #1056 (+5)
20K → Half
4:05 | 5:59/mi
25K· 15.53 mi
1:33:48
Rank: #1057 (-1)
Half → 25K
14:51 | 6:07/mi
30K· 18.64 mi
1:53:19
Rank: #1058 (-1)
25K → 30K
19:31 | 6:17/mi
20M
2:01:53
Rank: #1023 (+35)
30K → 20M
8:34 | 6:18/mi
21M
2:08:29
Rank: #995 (+28)
20M → 21M
6:36 | 6:36/mi
35K· 21.75 mi
2:13:00
Rank: #971 (+24)
21M → 35K
4:31 | 6:02/mi
23M
2:20:50
Rank: #938 (+33)
35K → 23M
7:50 | 6:15/mi
24M
2:27:03
Rank: #937 (+1)
23M → 24M
6:13 | 6:13/mi
40K· 24.85 mi
2:32:44
Rank: #954 (-17)
24M → 40K
5:41 | 6:39/mi
25.2M
2:35:18
Rank: #963 (-9)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:42:42
Rank: #1085 (-122)
25.2M → Finish
7:24 | 7:16/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:18:57
Pace6:01 /mi
2nd Half
Distance13.11 mi
Time1:23:45
Pace6:23 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:5118:285:5718:28
5:57
-
10K
6.21 mi10:37:2637:035:5818:35
5:59
+0:02
15K
9.32 mi10:56:1555:526:0018:49
6:03
+0:04
20K
12.43 mi11:15:151:14:526:0119:00
6:07
+0:04
Half
13.11 mi11:19:201:18:576:014:05
5:59
-0:08
25K
15.53 mi11:34:111:33:486:0214:51
6:07
+0:08
30K
18.64 mi11:53:421:53:196:0519:31
6:17
+0:10
20M
20.00 mi12:02:162:01:536:068:34
6:18
+0:01
21M
21.00 mi12:08:522:08:296:076:36
6:36
+0:18
35K
21.75 mi12:13:232:13:006:074:31
6:02
-0:34
23M
23.00 mi12:21:132:20:506:077:50
6:15
+0:13
24M
24.00 mi12:27:262:27:036:086:13
6:13
-0:02
40K
24.85 mi12:33:072:32:446:095:41
6:39
+0:26
25.2M
25.20 mi12:35:412:35:186:102:34
7:27
+0:48
Finish
26.22 mi12:43:052:42:426:137:24
7:16
-0:11

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

5:57 /mi

Average Pace

6:13 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

41:08

25% of race

Time at Steady Pace

1:39:19

61% of race

Time at Slower Pace

22:15

14% of race

Average Pace: 6:12 /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 mi10:18:5118:285:5718:28
5:57
#914
10K
6.21 mi10:37:2637:035:5818:35
5:59
#985
15K
9.32 mi10:56:1555:526:0018:49
6:03
#1028
20K
12.43 mi11:15:151:14:526:0119:00
6:07
#1061
Half
13.11 mi11:19:201:18:576:014:05
5:59
#1056
25K
15.53 mi11:34:111:33:486:0214:51
6:07
#1057
30K
18.64 mi11:53:421:53:196:0519:31
6:17
#1058
20M
20.00 mi12:02:162:01:536:068:34
6:18
#1023
21M
21.00 mi12:08:522:08:296:076:36
6:36
#995
35K
21.75 mi12:13:232:13:006:074:31
6:02
#971
23M
23.00 mi12:21:132:20:506:077:50
6:15
#938
24M
24.00 mi12:27:262:27:036:086:13
6:13
#937
40K
24.85 mi12:33:072:32:446:095:41
6:39
#954
25.2M
25.20 mi12:35:412:35:186:102:34
7:27
#963
Finish
26.22 mi12:43:052:42:426:137:24
7:16
#1085
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi9148568561213(Top 4%)1151(Top 7%)1151(Top 20%)
10K6.21 mi3.10 mi985-71927-71927-711053(Top 4%)992(Top 6%)992(Top 18%)
15K9.32 mi3.11 mi1028-43970-43970-431213(Top 4%)1151(Top 7%)1151(Top 20%)
20K12.43 mi3.11 mi1061-331001-311001-311228(Top 4%)1163(Top 7%)1163(Top 21%)
Half13.11 mi0.68 mi1056+5996+5996+51099(Top 4%)1041(Top 6%)1041(Top 18%)
25K15.53 mi2.42 mi1057-19969961176(Top 4%)1110(Top 7%)1110(Top 20%)
30K18.64 mi3.11 mi1058-1997-1997-11148(Top 4%)1082(Top 7%)1082(Top 19%)
20M20.00 mi1.36 mi1023+35963+34963+34975(Top 3%)920(Top 6%)920(Top 16%)
21M21.00 mi1.00 mi995+28936+27936+27905(Top 3%)855(Top 5%)855(Top 15%)
35K21.75 mi0.75 mi971+24914+22914+22810(Top 3%)756(Top 5%)756(Top 13%)
23M23.00 mi1.25 mi938+33882+32882+32784(Top 3%)739(Top 5%)739(Top 13%)
24M24.00 mi1.00 mi937+1880+2880+21066(Top 4%)1002(Top 6%)1002(Top 18%)
40K24.85 mi0.85 mi954-17897-17897-172126(Top 7%)1952(Top 12%)1952(Top 35%)
25.2M25.20 mi0.35 mi963-9906-9906-93061(Top 11%)2702(Top 17%)2702(Top 48%)
Finish26.22 mi1.02 mi1085-1221022-1161022-1167426(Top 26%)5559(Top 35%)5559(Top 99%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1213

Males

1151

M18-39

1151

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1053

Males

992

M18-39

992

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1213

Males

1151

M18-39

1151

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1228

Males

1163

M18-39

1163

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1099

Males

1041

M18-39

1041

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1176

Males

1110

M18-39

1110

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1148

Males

1082

M18-39

1082

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

975

Males

920

M18-39

920

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

905

Males

855

M18-39

855

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

810

Males

756

M18-39

756

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

784

Males

739

M18-39

739

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1066

Males

1002

M18-39

1002

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

2126

Males

1952

M18-39

1952

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3061

Males

2702

M18-39

2702

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

7426

Males

5559

M18-39

5559

Passing Analysis

Category:
Athletes Passed
326
Passed By
497
Net Change
-171
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#914
5K → 10K2394-71#914#985
10K → 15K1558-43#985#1028
15K → 20K2255-33#1028#1061
20K → Half83+5#1061#1056
Half → 25K3031-1#1056#1057
25K → 30K4647-1#1057#1058
30K → 20M4914+35#1058#1023
20M → 21M346+28#1023#995
21M → 35K262+24#995#971
35K → 23M429+33#971#938
23M → 24M1514+1#938#937
24M → 40K1027-17#937#954
40K → 25.2M615-9#954#963
25.2M → Finish0122-122#963#1085
TOTALS326497-171
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing