Boston Marathon logo
BOSTON MARATHON 2023

Peter O'Donnell

Bib: 30464•M

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:44
Rank: #23168
Start → 5K
30:44 | 9:54/mi
10K· 6.21 mi
1:00:03
Rank: #22787 (+381)
5K → 10K
29:19 | 9:26/mi
15K· 9.32 mi
1:28:48
Rank: #22395 (+392)
10K → 15K
28:45 | 9:15/mi
20K· 12.43 mi
1:59:36
Rank: #22473 (-78)
15K → 20K
30:48 | 9:55/mi
Half· 13.11 mi
2:06:22
Rank: #22520 (-47)
20K → Half
6:46 | 9:55/mi
25K· 15.53 mi
2:31:21
Rank: #22569 (-49)
Half → 25K
24:59 | 10:18/mi
30K· 18.64 mi
3:07:57
Rank: #22995 (-426)
25K → 30K
36:36 | 11:47/mi
20M
3:24:59
Rank: #23184 (-189)
30K → 20M
17:02 | 12:32/mi
21M
3:38:54
Rank: #23350 (-166)
20M → 21M
13:55 | 13:55/mi
35K· 21.75 mi
3:49:29
Rank: #23550 (-200)
21M → 35K
10:35 | 14:09/mi
23M
4:05:14
Rank: #23649 (-99)
35K → 23M
15:45 | 12:35/mi
24M
4:17:28
Rank: #23739 (-90)
23M → 24M
12:14 | 12:14/mi
40K· 24.85 mi
4:28:28
Rank: #23803 (-64)
24M → 40K
11:00 | 12:52/mi
25.2M
4:32:43
Rank: #23799 (+4)
40K → 25.2M
4:15 | 12:19/mi
Finish· 26.22 mi
4:44:47
Rank: #23866 (-67)
25.2M → Finish
12:04 | 11:50/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
Time2:06:22
Pace9:38 /mi
2nd Half
Distance13.11 mi
Time2:38:25
Pace12:05 /mi
📊Positive Split: 25.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0730:449:5430:44
9:54
-
10K
6.21 mi12:19:261:00:039:4029:19
9:26
-0:28
15K
9.32 mi12:48:111:28:489:3228:45
9:15
-0:11
20K
12.43 mi13:18:591:59:369:3730:48
9:55
+0:40
Half
13.11 mi13:25:452:06:229:386:46
9:55
0:00
25K
15.53 mi13:50:442:31:219:4524:59
10:18
+0:23
30K
18.64 mi14:27:203:07:5710:0536:36
11:47
+1:29
20M
20.00 mi14:44:223:24:5910:1517:02
12:32
+0:45
21M
21.00 mi14:58:173:38:5410:2513:55
13:55
+1:23
35K
21.75 mi15:08:523:49:2910:3310:35
14:09
+0:14
23M
23.00 mi15:24:374:05:1410:4015:45
12:35
-1:34
24M
24.00 mi15:36:514:17:2810:4412:14
12:14
-0:21
40K
24.85 mi15:47:514:28:2810:4811:00
12:52
+0:38
25.2M
25.20 mi15:52:064:32:4310:494:15
12:19
-0:33
Finish
26.22 mi16:04:104:44:4710:5212:04
11:50
-0:29

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

9:15 /mi

Average Pace

10:52 /mi

Slowest Pace

14:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:21

53% of race

Time at Steady Pace

1:37:56

34% of race

Time at Slower Pace

35:30

12% of race

Average Pace: 10:52 /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 mi11:50:0730:449:5430:44
9:54
#23168
10K
6.21 mi12:19:261:00:039:4029:19
9:26
#22787
15K
9.32 mi12:48:111:28:489:3228:45
9:15
#22395
20K
12.43 mi13:18:591:59:369:3730:48
9:55
#22473
Half
13.11 mi13:25:452:06:229:386:46
9:55
#22520
25K
15.53 mi13:50:442:31:219:4524:59
10:18
#22569
30K
18.64 mi14:27:203:07:5710:0536:36
11:47
#22995
20M
20.00 mi14:44:223:24:5910:1517:02
12:32
#23184
21M
21.00 mi14:58:173:38:5410:2513:55
13:55
#23350
35K
21.75 mi15:08:523:49:2910:3310:35
14:09
#23550
23M
23.00 mi15:24:374:05:1410:4015:45
12:35
#23649
24M
24.00 mi15:36:514:17:2810:4412:14
12:14
#23739
40K
24.85 mi15:47:514:28:2810:4811:00
12:52
#23803
25.2M
25.20 mi15:52:064:32:4310:494:15
12:19
#23799
Finish
26.22 mi16:04:104:44:4710:5212:04
11:50
#23866
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23168136681366821490(Top 81%)12979(Top 86%)12979(Top 246%)
10K6.21 mi3.10 mi22787+38113516+15213516+15222323(Top 84%)13311(Top 88%)13311(Top 252%)
15K9.32 mi3.11 mi22395+39213334+18213334+18221490(Top 81%)12979(Top 86%)12979(Top 246%)
20K12.43 mi3.11 mi22473-7813379-4513379-4522688(Top 85%)13484(Top 89%)13484(Top 255%)
Half13.11 mi0.68 mi22520-4713395-1613395-1623112(Top 87%)13680(Top 90%)13680(Top 259%)
25K15.53 mi2.42 mi22569-4913408-1313408-1322848(Top 86%)13530(Top 89%)13530(Top 256%)
30K18.64 mi3.11 mi22995-42613596-18813596-18824234(Top 91%)14069(Top 93%)14069(Top 266%)
20M20.00 mi1.36 mi23184-18913674-7813674-7824778(Top 93%)14267(Top 94%)14267(Top 270%)
21M21.00 mi1.00 mi23350-16613743-6913743-6924956(Top 94%)14344(Top 95%)14344(Top 271%)
35K21.75 mi0.75 mi23550-20013836-9313836-9326182(Top 98%)14940(Top 98%)14940(Top 283%)
23M23.00 mi1.25 mi23649-9913873-3713873-3724655(Top 93%)14169(Top 93%)14169(Top 268%)
24M24.00 mi1.00 mi23739-9013897-2413897-2424780(Top 93%)14183(Top 93%)14183(Top 268%)
40K24.85 mi0.85 mi23803-6413926-2913926-2924818(Top 93%)14218(Top 94%)14218(Top 269%)
25.2M25.20 mi0.35 mi23799+413919+713919+723004(Top 86%)13325(Top 88%)13325(Top 252%)
Finish26.22 mi1.02 mi23866-6713941-2213941-2225084(Top 94%)14351(Top 95%)14351(Top 272%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

21490

Males

12979

M18-39

12979

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

22323

Males

13311

M18-39

13311

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

21490

Males

12979

M18-39

12979

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

22688

Males

13484

M18-39

13484

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

23112

Males

13680

M18-39

13680

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

22848

Males

13530

M18-39

13530

25K→30K

15.5 - 18.6 mi

Top 91%
×9stories
+181ft-148ft

Overall

24234

Males

14069

M18-39

14069

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

24778

Males

14267

M18-39

14267

20M→21M

20.0 - 21.0 mi

Top 94%
×8stories
+106ft-24ft

Overall

24956

Males

14344

M18-39

14344

21M→35K

21.0 - 21.8 mi

Top 98%
×7stories
+17ft-86ft

Overall

26182

Males

14940

M18-39

14940

35K→23M

21.8 - 23.0 mi

Top 93%
×5stories
+23ft-63ft

Overall

24655

Males

14169

M18-39

14169

23M→24M

23.0 - 24.0 mi

Top 93%
×6stories
+12ft-82ft

Overall

24780

Males

14183

M18-39

14183

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24818

Males

14218

M18-39

14218

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

23004

Males

13325

M18-39

13325

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2stories
+22ft-21ft

Overall

25084

Males

14351

M18-39

14351

Passing Analysis

Category:
Athletes Passed
1190
Passed By
1888
Net Change
-698
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23168
5K → 10K46180+381#23168#22787
10K → 15K41624+392#22787#22395
15K → 20K105183-78#22395#22473
20K → Half1360-47#22473#22520
Half → 25K76125-49#22520#22569
25K → 30K28454-426#22569#22995
30K → 20M21210-189#22995#23184
20M → 21M8174-166#23184#23350
21M → 35K2202-200#23350#23550
35K → 23M14113-99#23550#23649
23M → 24M12102-90#23649#23739
24M → 40K1276-64#23739#23803
40K → 25.2M1814+4#23803#23799
25.2M → Finish471-67#23799#23866
TOTALS11901888-698
📊

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