Boston Marathon logo
BOSTON MARATHON 2025

Jonathan O'Donnell

Bib: 1716•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 12%
Division (M18-39)
#0 / 5642
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:38
Rank: #2549
Start → 5K
19:38 | 6:19/mi
10K· 6.21 mi
39:25
Rank: #2689 (-140)
5K → 10K
19:47 | 6:22/mi
15K· 9.32 mi
59:02
Rank: #2596 (+93)
10K → 15K
19:37 | 6:19/mi
20K· 12.43 mi
1:19:02
Rank: #2599 (-3)
15K → 20K
20:00 | 6:26/mi
Half· 13.11 mi
1:23:25
Rank: #2628 (-29)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:39:08
Rank: #2632 (-4)
Half → 25K
15:43 | 6:29/mi
30K· 18.64 mi
1:59:30
Rank: #2505 (+127)
25K → 30K
20:22 | 6:33/mi
20M
2:08:22
Rank: #2410 (+95)
30K → 20M
8:52 | 6:31/mi
21M
2:15:09
Rank: #2319 (+91)
20M → 21M
6:47 | 6:47/mi
35K· 21.75 mi
2:20:00
Rank: #2303 (+16)
21M → 35K
4:51 | 6:29/mi
23M
2:28:21
Rank: #2259 (+44)
35K → 23M
8:21 | 6:40/mi
24M
2:34:41
Rank: #2185 (+74)
23M → 24M
6:20 | 6:20/mi
40K· 24.85 mi
2:40:11
Rank: #2122 (+63)
24M → 40K
5:30 | 6:26/mi
25.2M
2:42:36
Rank: #2098 (+24)
40K → 25.2M
2:25 | 7:00/mi
Finish· 26.22 mi
2:48:53
Rank: #2052 (+46)
25.2M → Finish
6:17 | 6:10/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
Time1:23:25
Pace6:22 /mi
2nd Half
Distance13.11 mi
Time1:25:28
Pace6:31 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1819:386:1919:38
6:19
-
10K
6.21 mi10:40:0539:256:2119:47
6:22
+0:03
15K
9.32 mi10:59:4259:026:2019:37
6:19
-0:03
20K
12.43 mi11:19:421:19:026:2220:00
6:26
+0:07
Half
13.11 mi11:24:051:23:256:224:23
6:25
-0:01
25K
15.53 mi11:39:481:39:086:2315:43
6:29
+0:04
30K
18.64 mi12:00:101:59:306:2520:22
6:33
+0:04
20M
20.00 mi12:09:022:08:226:258:52
6:31
-0:02
21M
21.00 mi12:15:492:15:096:266:47
6:47
+0:16
35K
21.75 mi12:20:402:20:006:264:51
6:29
-0:18
23M
23.00 mi12:29:012:28:216:278:21
6:40
+0:11
24M
24.00 mi12:35:212:34:416:276:20
6:20
-0:20
40K
24.85 mi12:40:512:40:116:275:30
6:26
+0:06
25.2M
25.20 mi12:43:162:42:366:272:25
7:00
+0:34
Finish
26.22 mi12:49:332:48:536:276:17
6:10
-0:50

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

6:10 /mi

Average Pace

6:27 /mi

Slowest Pace

7:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:41

95% of race

Time at Steady Pace

9:12

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:26 /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 mi10:20:1819:386:1919:38
6:19
#2549
10K
6.21 mi10:40:0539:256:2119:47
6:22
#2689
15K
9.32 mi10:59:4259:026:2019:37
6:19
#2596
20K
12.43 mi11:19:421:19:026:2220:00
6:26
#2599
Half
13.11 mi11:24:051:23:256:224:23
6:25
#2628
25K
15.53 mi11:39:481:39:086:2315:43
6:29
#2632
30K
18.64 mi12:00:101:59:306:2520:22
6:33
#2505
20M
20.00 mi12:09:022:08:226:258:52
6:31
#2410
21M
21.00 mi12:15:492:15:096:266:47
6:47
#2319
35K
21.75 mi12:20:402:20:006:264:51
6:29
#2303
23M
23.00 mi12:29:012:28:216:278:21
6:40
#2259
24M
24.00 mi12:35:212:34:416:276:20
6:20
#2185
40K
24.85 mi12:40:512:40:116:275:30
6:26
#2122
25.2M
25.20 mi12:43:162:42:366:272:25
7:00
#2098
Finish
26.22 mi12:49:332:48:536:276:17
6:10
#2052
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2549242524252402(Top 8%)2292(Top 14%)2292(Top 41%)
10K6.21 mi3.10 mi2689-1402560-1352560-1352833(Top 10%)2696(Top 17%)2696(Top 48%)
15K9.32 mi3.11 mi2596+932475+852475+852402(Top 8%)2292(Top 14%)2292(Top 41%)
20K12.43 mi3.11 mi2599-32480-52480-52726(Top 10%)2596(Top 16%)2596(Top 46%)
Half13.11 mi0.68 mi2628-292508-282508-283134(Top 11%)2975(Top 18%)2975(Top 53%)
25K15.53 mi2.42 mi2632-42513-52513-52772(Top 10%)2636(Top 16%)2636(Top 47%)
30K18.64 mi3.11 mi2505+1272392+1212392+1212209(Top 8%)2092(Top 13%)2092(Top 37%)
20M20.00 mi1.36 mi2410+952298+942298+941707(Top 6%)1613(Top 10%)1613(Top 29%)
21M21.00 mi1.00 mi2319+912210+882210+881468(Top 5%)1384(Top 9%)1384(Top 25%)
35K21.75 mi0.75 mi2303+162195+152195+152360(Top 8%)2203(Top 14%)2203(Top 39%)
23M23.00 mi1.25 mi2259+442151+442151+442098(Top 7%)1959(Top 12%)1959(Top 35%)
24M24.00 mi1.00 mi2185+742078+732078+731405(Top 5%)1316(Top 8%)1316(Top 23%)
40K24.85 mi0.85 mi2122+632016+622016+621373(Top 5%)1274(Top 8%)1274(Top 23%)
25.2M25.20 mi0.35 mi2098+241991+251991+251490(Top 5%)1361(Top 8%)1361(Top 24%)
Finish26.22 mi1.02 mi2052+461946+451946+451409(Top 5%)1312(Top 8%)1312(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2402

Males

2292

M18-39

2292

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2833

Males

2696

M18-39

2696

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2402

Males

2292

M18-39

2292

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2726

Males

2596

M18-39

2596

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3134

Males

2975

M18-39

2975

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2772

Males

2636

M18-39

2636

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2209

Males

2092

M18-39

2092

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1707

Males

1613

M18-39

1613

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1468

Males

1384

M18-39

1384

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2360

Males

2203

M18-39

2203

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

2098

Males

1959

M18-39

1959

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1405

Males

1316

M18-39

1316

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1373

Males

1274

M18-39

1274

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1490

Males

1361

M18-39

1361

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1409

Males

1312

M18-39

1312

Passing Analysis

Category:
Athletes Passed
1012
Passed By
515
Net Change
+497
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2549
5K → 10K66206-140#2549#2689
10K → 15K12734+93#2689#2596
15K → 20K7477-3#2596#2599
20K → Half433-29#2599#2628
Half → 25K6367-4#2628#2632
25K → 30K15932+127#2632#2505
30K → 20M994+95#2505#2410
20M → 21M921+91#2410#2319
21M → 35K2913+16#2319#2303
35K → 23M6218+44#2303#2259
23M → 24M817+74#2259#2185
24M → 40K718+63#2185#2122
40K → 25.2M284+24#2122#2098
25.2M → Finish5711+46#2098#2052
TOTALS1012515+497
📊

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