Boston Marathon logo
BOSTON MARATHON 2025

Neil Uffner

Bib: 8642•M

NJ

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 38%
Masters (Masters Men)
#0 / 10463
Top 25%
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
21:30
Rank: #7217
Start → 5K
21:30 | 6:55/mi
10K· 6.21 mi
42:47
Rank: #7041 (+176)
5K → 10K
21:17 | 6:51/mi
15K· 9.32 mi
1:04:44
Rank: #7407 (-366)
10K → 15K
21:57 | 7:04/mi
20K· 12.43 mi
1:27:26
Rank: #7723 (-316)
15K → 20K
22:42 | 7:18/mi
Half· 13.11 mi
1:32:13
Rank: #7708 (+15)
20K → Half
4:47 | 7:01/mi
25K· 15.53 mi
1:50:26
Rank: #7972 (-264)
Half → 25K
18:13 | 7:31/mi
30K· 18.64 mi
2:13:01
Rank: #7577 (+395)
25K → 30K
22:35 | 7:16/mi
20M
2:23:52
Rank: #7694 (-117)
30K → 20M
10:51 | 7:59/mi
21M
2:32:08
Rank: #7708 (-14)
20M → 21M
8:16 | 8:16/mi
35K· 21.75 mi
2:38:27
Rank: #7936 (-228)
21M → 35K
6:19 | 8:27/mi
23M
2:48:16
Rank: #7929 (+7)
35K → 23M
9:49 | 7:50/mi
24M
2:55:02
Rank: #7666 (+263)
23M → 24M
6:46 | 6:46/mi
40K· 24.85 mi
3:01:09
Rank: #7492 (+174)
24M → 40K
6:07 | 7:09/mi
25.2M
3:03:47
Rank: #7403 (+89)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
3:10:38
Rank: #7233 (+170)
25.2M → Finish
6:51 | 6:43/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
Time1:32:13
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:38:25
Pace7:30 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:0021:306:5521:30
6:55
-
10K
6.21 mi11:08:1742:476:5321:17
6:51
-0:04
15K
9.32 mi11:30:141:04:446:5721:57
7:04
+0:13
20K
12.43 mi11:52:561:27:267:0222:42
7:18
+0:14
Half
13.11 mi11:57:431:32:137:024:47
7:01
-0:17
25K
15.53 mi12:15:561:50:267:0718:13
7:31
+0:30
30K
18.64 mi12:38:312:13:017:0822:35
7:16
-0:15
20M
20.00 mi12:49:222:23:527:1210:51
7:59
+0:43
21M
21.00 mi12:57:382:32:087:158:16
8:16
+0:17
35K
21.75 mi13:03:572:38:277:176:19
8:27
+0:11
23M
23.00 mi13:13:462:48:167:199:49
7:50
-0:37
24M
24.00 mi13:20:322:55:027:186:46
6:46
-1:04
40K
24.85 mi13:26:393:01:097:176:07
7:09
+0:23
25.2M
25.20 mi13:29:173:03:477:182:38
7:38
+0:29
Finish
26.22 mi13:36:083:10:387:176:51
6:43
-0:55

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

6:43 /mi

Average Pace

7:17 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

56:24

30% of race

Time at Steady Pace

1:36:21

51% of race

Time at Slower Pace

37:53

20% of race

Average Pace: 7:16 /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 mi10:47:0021:306:5521:30
6:55
#7217
10K
6.21 mi11:08:1742:476:5321:17
6:51
#7041
15K
9.32 mi11:30:141:04:446:5721:57
7:04
#7407
20K
12.43 mi11:52:561:27:267:0222:42
7:18
#7723
Half
13.11 mi11:57:431:32:137:024:47
7:01
#7708
25K
15.53 mi12:15:561:50:267:0718:13
7:31
#7972
30K
18.64 mi12:38:312:13:017:0822:35
7:16
#7577
20M
20.00 mi12:49:222:23:527:1210:51
7:59
#7694
21M
21.00 mi12:57:382:32:087:158:16
8:16
#7708
35K
21.75 mi13:03:572:38:277:176:19
8:27
#7936
23M
23.00 mi13:13:462:48:167:199:49
7:50
#7929
24M
24.00 mi13:20:322:55:027:186:46
6:46
#7666
40K
24.85 mi13:26:393:01:097:176:07
7:09
#7492
25.2M
25.20 mi13:29:173:03:477:182:38
7:38
#7403
Finish
26.22 mi13:36:083:10:387:176:51
6:43
#7233
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7217645864588065(Top 28%)6985(Top 43%)6985(Top 311%)
10K6.21 mi3.10 mi7041+1766322+1366322+1366859(Top 24%)6168(Top 38%)6168(Top 274%)
15K9.32 mi3.11 mi7407-3666580-2586580-2588065(Top 28%)6985(Top 43%)6985(Top 311%)
20K12.43 mi3.11 mi7723-3166781-2016781-2019073(Top 32%)7488(Top 46%)7488(Top 333%)
Half13.11 mi0.68 mi7708+156768+136768+137627(Top 27%)6648(Top 41%)6648(Top 296%)
25K15.53 mi2.42 mi7972-2646909-1416909-14110058(Top 35%)7901(Top 49%)7901(Top 352%)
30K18.64 mi3.11 mi7577+3956615+2946615+2946273(Top 22%)5502(Top 34%)5502(Top 245%)
20M20.00 mi1.36 mi7694-1176654-396654-3910304(Top 36%)7677(Top 48%)7677(Top 342%)
21M21.00 mi1.00 mi7708-146628+266628+268969(Top 32%)6788(Top 42%)6788(Top 302%)
35K21.75 mi0.75 mi7936-2286739-1116739-11115080(Top 53%)9746(Top 61%)9746(Top 434%)
23M23.00 mi1.25 mi7929+76691+486691+488836(Top 31%)6624(Top 41%)6624(Top 295%)
24M24.00 mi1.00 mi7666+2636496+1956496+1953326(Top 12%)2992(Top 19%)2992(Top 133%)
40K24.85 mi0.85 mi7492+1746346+1506346+1504771(Top 17%)4049(Top 25%)4049(Top 180%)
25.2M25.20 mi0.35 mi7403+896281+656281+654026(Top 14%)3442(Top 21%)3442(Top 153%)
Finish26.22 mi1.02 mi7233+1706154+1276154+1274010(Top 14%)3443(Top 21%)3443(Top 153%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21stories
+97ft-345ft

Overall

8065

Males

6985

M40-44

6985

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6859

Males

6168

M40-44

6168

10K→15K

6.2 - 9.3 mi

Top 28%
×3stories
+67ft-78ft

Overall

8065

Males

6985

M40-44

6985

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9073

Males

7488

M40-44

7488

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7627

Males

6648

M40-44

6648

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

10058

Males

7901

M40-44

7901

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

6273

Males

5502

M40-44

5502

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

10304

Males

7677

M40-44

7677

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8969

Males

6788

M40-44

6788

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

15080

Males

9746

M40-44

9746

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8836

Males

6624

M40-44

6624

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3326

Males

2992

M40-44

2992

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4771

Males

4049

M40-44

4049

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

4026

Males

3442

M40-44

3442

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

4010

Males

3443

M40-44

3443

Passing Analysis

Category:
Athletes Passed
1918
Passed By
1934
Net Change
-16
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7217
5K → 10K308132+176#7217#7041
10K → 15K51417-366#7041#7407
15K → 20K60376-316#7407#7723
20K → Half3318+15#7723#7708
Half → 25K57321-264#7708#7972
25K → 30K42328+395#7972#7577
30K → 20M59176-117#7577#7694
20M → 21M89103-14#7694#7708
21M → 35K21249-228#7708#7936
35K → 23M110103+7#7936#7929
23M → 24M2641+263#7929#7666
24M → 40K1784+174#7666#7492
40K → 25.2M912+89#7492#7403
25.2M → Finish1744+170#7403#7233
TOTALS19181934-16
📊

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