Boston Marathon logo
BOSTON MARATHON 2025

Simon O'driscoll

Bib: 32032•M

NJ

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
26:03
Rank: #19207
Start → 5K
26:03 | 8:23/mi
10K· 6.21 mi
51:59
Rank: #19035 (+172)
5K → 10K
25:56 | 8:21/mi
15K· 9.32 mi
1:17:36
Rank: #18561 (+474)
10K → 15K
25:37 | 8:15/mi
20K· 12.43 mi
1:45:01
Rank: #18957 (-396)
15K → 20K
27:25 | 8:49/mi
Half· 13.11 mi
1:50:51
Rank: #18991 (-34)
20K → Half
5:50 | 8:33/mi
25K· 15.53 mi
2:13:44
Rank: #19565 (-574)
Half → 25K
22:53 | 9:26/mi
30K· 18.64 mi
2:43:39
Rank: #19743 (-178)
25K → 30K
29:55 | 9:38/mi
20M
2:56:50
Rank: #19785 (-42)
30K → 20M
13:11 | 9:42/mi
21M
3:08:53
Rank: #20169 (-384)
20M → 21M
12:03 | 12:03/mi
35K· 21.75 mi
3:18:38
Rank: #20723 (-554)
21M → 35K
9:45 | 13:02/mi
23M
3:35:05
Rank: #21438 (-715)
35K → 23M
16:27 | 13:08/mi
24M
3:46:40
Rank: #21674 (-236)
23M → 24M
11:35 | 11:35/mi
40K· 24.85 mi
3:57:15
Rank: #21887 (-213)
24M → 40K
10:35 | 12:23/mi
25.2M
4:02:51
Rank: #22115 (-228)
40K → 25.2M
5:36 | 16:14/mi
Finish· 26.22 mi
4:15:04
Rank: #22358 (-243)
25.2M → Finish
12:13 | 11:59/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
Time1:50:51
Pace8:27 /mi
2nd Half
Distance13.11 mi
Time2:24:13
Pace11:00 /mi
📊Positive Split: 30.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0326:038:2326:03
8:23
-
10K
6.21 mi12:15:5951:598:2225:56
8:21
-0:02
15K
9.32 mi12:41:361:17:368:2025:37
8:15
-0:06
20K
12.43 mi13:09:011:45:018:2727:25
8:49
+0:34
Half
13.11 mi13:14:511:50:518:275:50
8:33
-0:16
25K
15.53 mi13:37:442:13:448:3722:53
9:26
+0:53
30K
18.64 mi14:07:392:43:398:4729:55
9:38
+0:12
20M
20.00 mi14:20:502:56:508:5013:11
9:42
+0:04
21M
21.00 mi14:32:533:08:539:0012:03
12:03
+2:21
35K
21.75 mi14:42:383:18:389:089:45
13:02
+0:59
23M
23.00 mi14:59:053:35:059:2116:27
13:08
+0:06
24M
24.00 mi15:10:403:46:409:2711:35
11:35
-1:33
40K
24.85 mi15:21:153:57:159:3310:35
12:23
+0:48
25.2M
25.20 mi15:26:514:02:519:385:36
16:14
+3:51
Finish
26.22 mi15:39:044:15:049:4412:13
11:59
-4:15

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

8:15 /mi

Average Pace

9:44 /mi

Slowest Pace

16:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:26

33% of race

Time at Steady Pace

1:33:24

37% of race

Time at Slower Pace

1:18:14

31% of race

Average Pace: 9:44 /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 mi11:50:0326:038:2326:03
8:23
#19207
10K
6.21 mi12:15:5951:598:2225:56
8:21
#19035
15K
9.32 mi12:41:361:17:368:2025:37
8:15
#18561
20K
12.43 mi13:09:011:45:018:2727:25
8:49
#18957
Half
13.11 mi13:14:511:50:518:275:50
8:33
#18991
25K
15.53 mi13:37:442:13:448:3722:53
9:26
#19565
30K
18.64 mi14:07:392:43:398:4729:55
9:38
#19743
20M
20.00 mi14:20:502:56:508:5013:11
9:42
#19785
21M
21.00 mi14:32:533:08:539:0012:03
12:03
#20169
35K
21.75 mi14:42:383:18:389:089:45
13:02
#20723
23M
23.00 mi14:59:053:35:059:2116:27
13:08
#21438
24M
24.00 mi15:10:403:46:409:2711:35
11:35
#21674
40K
24.85 mi15:21:153:57:159:3310:35
12:23
#21887
25.2M
25.20 mi15:26:514:02:519:385:36
16:14
#22115
Finish
26.22 mi15:39:044:15:049:4412:13
11:59
#22358
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19207121291212917691(Top 62%)11510(Top 71%)11510(Top 204%)
10K6.21 mi3.10 mi19035+17212056+7312056+7318852(Top 66%)12005(Top 75%)12005(Top 213%)
15K9.32 mi3.11 mi18561+47411849+20711849+20717691(Top 62%)11510(Top 71%)11510(Top 204%)
20K12.43 mi3.11 mi18957-39612024-17512024-17520063(Top 71%)12499(Top 78%)12499(Top 222%)
Half13.11 mi0.68 mi18991-3412036-1212036-1219521(Top 69%)12285(Top 76%)12285(Top 218%)
25K15.53 mi2.42 mi19565-57412279-24312279-24321668(Top 76%)13148(Top 82%)13148(Top 233%)
30K18.64 mi3.11 mi19743-17812310-3112310-3120471(Top 72%)12500(Top 78%)12500(Top 222%)
20M20.00 mi1.36 mi19785-4212307+312307+319939(Top 70%)12138(Top 75%)12138(Top 215%)
21M21.00 mi1.00 mi20169-38412437-13012437-13023678(Top 83%)13760(Top 85%)13760(Top 244%)
35K21.75 mi0.75 mi20723-55412686-24912686-24926991(Top 95%)15333(Top 95%)15333(Top 272%)
23M23.00 mi1.25 mi21438-71512989-30312989-30326548(Top 93%)15109(Top 94%)15109(Top 268%)
24M24.00 mi1.00 mi21674-23613064-7513064-7525029(Top 88%)14319(Top 89%)14319(Top 254%)
40K24.85 mi0.85 mi21887-21313133-6913133-6925481(Top 90%)14512(Top 90%)14512(Top 257%)
25.2M25.20 mi0.35 mi22115-22813227-9413227-9427817(Top 98%)15715(Top 98%)15715(Top 279%)
Finish26.22 mi1.02 mi22358-24313323-9613323-9626775(Top 94%)15186(Top 94%)15186(Top 269%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

17691

Males

11510

M18-39

11510

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

18852

Males

12005

M18-39

12005

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

17691

Males

11510

M18-39

11510

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

20063

Males

12499

M18-39

12499

20K→Half

12.4 - 13.1 mi

Top 69%
×2stories
+19ft-37ft

Overall

19521

Males

12285

M18-39

12285

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

21668

Males

13148

M18-39

13148

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

20471

Males

12500

M18-39

12500

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

19939

Males

12138

M18-39

12138

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

23678

Males

13760

M18-39

13760

21M→35K

21.0 - 21.8 mi

Top 95%
×7stories
+17ft-86ft

Overall

26991

Males

15333

M18-39

15333

35K→23M

21.8 - 23.0 mi

Top 93%
×5stories
+23ft-63ft

Overall

26548

Males

15109

M18-39

15109

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

25029

Males

14319

M18-39

14319

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

25481

Males

14512

M18-39

14512

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

27817

Males

15715

M18-39

15715

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2stories
+22ft-21ft

Overall

26775

Males

15186

M18-39

15186

Passing Analysis

Category:
Athletes Passed
1360
Passed By
4511
Net Change
-3151
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19207
5K → 10K355183+172#19207#19035
10K → 15K50935+474#19035#18561
15K → 20K100496-396#18561#18957
20K → Half1751-34#18957#18991
Half → 25K48622-574#18991#19565
25K → 30K172350-178#19565#19743
30K → 20M86128-42#19743#19785
20M → 21M22406-384#19785#20169
21M → 35K6560-554#20169#20723
35K → 23M17732-715#20723#21438
23M → 24M8244-236#21438#21674
24M → 40K10223-213#21674#21887
40K → 25.2M1229-228#21887#22115
25.2M → Finish9252-243#22115#22358
TOTALS13604511-3151
📊

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