Boston Marathon logo
BOSTON MARATHON 2025

Nafij Ahmed

Bib: 8243•M

VA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:03
Rank: #25559
Start → 5K
31:03 | 10:00/mi
10K· 6.21 mi
1:01:35
Rank: #25213 (+346)
5K → 10K
30:32 | 9:50/mi
15K· 9.32 mi
1:31:49
Rank: #24931 (+282)
10K → 15K
30:14 | 9:44/mi
20K· 12.43 mi
2:02:54
Rank: #24734 (+197)
15K → 20K
31:05 | 10:00/mi
Half· 13.11 mi
2:09:43
Rank: #24735 (-1)
20K → Half
6:49 | 9:59/mi
25K· 15.53 mi
2:35:05
Rank: #24682 (+53)
Half → 25K
25:22 | 10:28/mi
30K· 18.64 mi
3:11:09
Rank: #24776 (-94)
25K → 30K
36:04 | 11:37/mi
20M
3:27:22
Rank: #24819 (-43)
30K → 20M
16:13 | 11:56/mi
21M
3:42:23
Rank: #25036 (-217)
20M → 21M
15:01 | 15:01/mi
35K· 21.75 mi
3:52:05
Rank: #25136 (-100)
21M → 35K
9:42 | 12:58/mi
23M
4:08:40
Rank: #25241 (-105)
35K → 23M
16:35 | 13:15/mi
24M
4:21:40
Rank: #25332 (-91)
23M → 24M
13:00 | 13:00/mi
40K· 24.85 mi
4:34:11
Rank: #25496 (-164)
24M → 40K
12:31 | 14:38/mi
25.2M
4:39:30
Rank: #25560 (-64)
40K → 25.2M
5:19 | 15:25/mi
Finish· 26.22 mi
4:51:08
Rank: #25593 (-33)
25.2M → Finish
11:38 | 11:25/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
Time2:09:43
Pace9:54 /mi
2nd Half
Distance13.11 mi
Time2:41:25
Pace12:19 /mi
📊Positive Split: 24.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:41:0131:0310:0031:03
10:00
-
10K
6.21 mi11:11:331:01:359:5530:32
9:50
-0:10
15K
9.32 mi11:41:471:31:499:5130:14
9:44
-0:06
20K
12.43 mi12:12:522:02:549:5331:05
10:00
+0:16
Half
13.11 mi12:19:412:09:439:546:49
9:59
-0:01
25K
15.53 mi12:45:032:35:059:5925:22
10:28
+0:29
30K
18.64 mi13:21:073:11:0910:1536:04
11:37
+1:09
20M
20.00 mi13:37:203:27:2210:2216:13
11:56
+0:19
21M
21.00 mi13:52:213:42:2310:3515:01
15:01
+3:05
35K
21.75 mi14:02:033:52:0510:409:42
12:58
-2:03
23M
23.00 mi14:18:384:08:4010:4916:35
13:15
+0:17
24M
24.00 mi14:31:384:21:4010:5413:00
13:00
-0:15
40K
24.85 mi14:44:094:34:1111:0212:31
14:38
+1:38
25.2M
25.20 mi14:49:284:39:3011:055:19
15:25
+0:47
Finish
26.22 mi15:01:064:51:0811:0711:38
11:25
-4:00

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

9:44 /mi

Average Pace

11:07 /mi

Slowest Pace

15:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:05

53% of race

Time at Steady Pace

1:03:55

22% of race

Time at Slower Pace

1:12:08

25% of race

Average Pace: 11:06 /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 mi10:41:0131:0310:0031:03
10:00
#25559
10K
6.21 mi11:11:331:01:359:5530:32
9:50
#25213
15K
9.32 mi11:41:471:31:499:5130:14
9:44
#24931
20K
12.43 mi12:12:522:02:549:5331:05
10:00
#24734
Half
13.11 mi12:19:412:09:439:546:49
9:59
#24735
25K
15.53 mi12:45:032:35:059:5925:22
10:28
#24682
30K
18.64 mi13:21:073:11:0910:1536:04
11:37
#24776
20M
20.00 mi13:37:203:27:2210:2216:13
11:56
#24819
21M
21.00 mi13:52:213:42:2310:3515:01
15:01
#25036
35K
21.75 mi14:02:033:52:0510:409:42
12:58
#25136
23M
23.00 mi14:18:384:08:4010:4916:35
13:15
#25241
24M
24.00 mi14:31:384:21:4010:5413:00
13:00
#25332
40K
24.85 mi14:44:094:34:1111:0212:31
14:38
#25496
25.2M
25.20 mi14:49:284:39:3011:055:19
15:25
#25560
Finish
26.22 mi15:01:064:51:0811:0711:38
11:25
#25593
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25559149861498624362(Top 86%)14422(Top 90%)14422(Top 256%)
10K6.21 mi3.10 mi25213+34614804+18214804+18224927(Top 88%)14669(Top 91%)14669(Top 260%)
15K9.32 mi3.11 mi24931+28214684+12014684+12024362(Top 86%)14422(Top 90%)14422(Top 256%)
20K12.43 mi3.11 mi24734+19714581+10314581+10324228(Top 85%)14321(Top 89%)14321(Top 254%)
Half13.11 mi0.68 mi24735-114585-414585-424813(Top 87%)14583(Top 91%)14583(Top 258%)
25K15.53 mi2.42 mi24682+5314541+4414541+4424296(Top 86%)14329(Top 89%)14329(Top 254%)
30K18.64 mi3.11 mi24776-9414553-1214553-1225008(Top 88%)14528(Top 90%)14528(Top 257%)
20M20.00 mi1.36 mi24819-4314562-914562-925168(Top 89%)14535(Top 90%)14535(Top 258%)
21M21.00 mi1.00 mi25036-21714648-8614648-8627166(Top 96%)15444(Top 96%)15444(Top 274%)
35K21.75 mi0.75 mi25136-10014676-2814676-2826931(Top 95%)15306(Top 95%)15306(Top 271%)
23M23.00 mi1.25 mi25241-10514715-3914715-3926660(Top 94%)15161(Top 94%)15161(Top 269%)
24M24.00 mi1.00 mi25332-9114746-3114746-3126863(Top 95%)15230(Top 95%)15230(Top 270%)
40K24.85 mi0.85 mi25496-16414805-5914805-5927587(Top 97%)15604(Top 97%)15604(Top 277%)
25.2M25.20 mi0.35 mi25560-6414827-2214827-2227402(Top 96%)15484(Top 96%)15484(Top 274%)
Finish26.22 mi1.02 mi25593-3314833-614833-626018(Top 92%)14794(Top 92%)14794(Top 262%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

24362

Males

14422

M18-39

14422

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

24927

Males

14669

M18-39

14669

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

24362

Males

14422

M18-39

14422

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24228

Males

14321

M18-39

14321

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

24813

Males

14583

M18-39

14583

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

24296

Males

14329

M18-39

14329

25K→30K

15.5 - 18.6 mi

Top 88%
×9stories
+181ft-148ft

Overall

25008

Males

14528

M18-39

14528

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

25168

Males

14535

M18-39

14535

20M→21M

20.0 - 21.0 mi

Top 96%
×8stories
+106ft-24ft

Overall

27166

Males

15444

M18-39

15444

21M→35K

21.0 - 21.8 mi

Top 95%
×7stories
+17ft-86ft

Overall

26931

Males

15306

M18-39

15306

35K→23M

21.8 - 23.0 mi

Top 94%
×5stories
+23ft-63ft

Overall

26660

Males

15161

M18-39

15161

23M→24M

23.0 - 24.0 mi

Top 95%
×6stories
+12ft-82ft

Overall

26863

Males

15230

M18-39

15230

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

27587

Males

15604

M18-39

15604

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

27402

Males

15484

M18-39

15484

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2stories
+22ft-21ft

Overall

26018

Males

14794

M18-39

14794

Passing Analysis

Category:
Athletes Passed
1323
Passed By
1357
Net Change
-34
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25559
5K → 10K40357+346#25559#25213
10K → 15K30523+282#25213#24931
15K → 20K24649+197#24931#24734
20K → Half2526-1#24734#24735
Half → 25K12269+53#24735#24682
25K → 30K99193-94#24682#24776
30K → 20M4487-43#24776#24819
20M → 21M7224-217#24819#25036
21M → 35K9109-100#25036#25136
35K → 23M16121-105#25136#25241
23M → 24M15106-91#25241#25332
24M → 40K7171-164#25332#25496
40K → 25.2M670-64#25496#25560
25.2M → Finish1952-33#25560#25593
TOTALS13231357-34
📊

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