Boston Marathon logo
BOSTON MARATHON 2023

Jonathan Gavin

Bib: 3221•M

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 17%
Division (M18-39)
#0 / 5285
Top 37%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:26
Rank: #2727
Start → 5K
20:26 | 6:35/mi
10K· 6.21 mi
40:53
Rank: #3005 (-278)
5K → 10K
20:27 | 6:35/mi
15K· 9.32 mi
1:01:15
Rank: #2991 (+14)
10K → 15K
20:22 | 6:33/mi
20K· 12.43 mi
1:21:54
Rank: #3023 (-32)
15K → 20K
20:39 | 6:39/mi
Half· 13.11 mi
1:26:24
Rank: #3036 (-13)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:42:31
Rank: #2997 (+39)
Half → 25K
16:07 | 6:39/mi
30K· 18.64 mi
2:03:21
Rank: #2838 (+159)
25K → 30K
20:50 | 6:42/mi
20M
2:12:28
Rank: #2768 (+70)
30K → 20M
9:07 | 6:43/mi
21M
2:19:25
Rank: #2674 (+94)
20M → 21M
6:57 | 6:57/mi
35K· 21.75 mi
2:24:23
Rank: #2674
21M → 35K
4:58 | 6:38/mi
23M
2:32:54
Rank: #2638 (+36)
35K → 23M
8:31 | 6:48/mi
24M
2:39:33
Rank: #2625 (+13)
23M → 24M
6:39 | 6:39/mi
40K· 24.85 mi
2:45:25
Rank: #2638 (-13)
24M → 40K
5:52 | 6:52/mi
25.2M
2:48:01
Rank: #2648 (-10)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
2:54:57
Rank: #2684 (-36)
25.2M → Finish
6:56 | 6:48/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
Time1:26:24
Pace6:35 /mi
2nd Half
Distance13.11 mi
Time1:28:33
Pace6:45 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3720:266:3520:26
6:35
-
10K
6.21 mi10:42:0440:536:3520:27
6:35
0:00
15K
9.32 mi11:02:261:01:156:3420:22
6:33
-0:02
20K
12.43 mi11:23:051:21:546:3520:39
6:39
+0:06
Half
13.11 mi11:27:351:26:246:354:30
6:36
-0:03
25K
15.53 mi11:43:421:42:316:3616:07
6:39
+0:03
30K
18.64 mi12:04:322:03:216:3720:50
6:42
+0:03
20M
20.00 mi12:13:392:12:286:379:07
6:43
+0:01
21M
21.00 mi12:20:362:19:256:386:57
6:57
+0:14
35K
21.75 mi12:25:342:24:236:384:58
6:38
-0:19
23M
23.00 mi12:34:052:32:546:398:31
6:48
+0:10
24M
24.00 mi12:40:442:39:336:396:39
6:39
-0:09
40K
24.85 mi12:46:362:45:256:395:52
6:52
+0:13
25.2M
25.20 mi12:49:122:48:016:402:36
7:32
+0:40
Finish
26.22 mi12:56:082:54:576:416:56
6:48
-0:44

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

6:33 /mi

Average Pace

6:41 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:21

99% of race

Time at Steady Pace

2:36

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:40 /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 mi10:21:3720:266:3520:26
6:35
#2727
10K
6.21 mi10:42:0440:536:3520:27
6:35
#3005
15K
9.32 mi11:02:261:01:156:3420:22
6:33
#2991
20K
12.43 mi11:23:051:21:546:3520:39
6:39
#3023
Half
13.11 mi11:27:351:26:246:354:30
6:36
#3036
25K
15.53 mi11:43:421:42:316:3616:07
6:39
#2997
30K
18.64 mi12:04:322:03:216:3720:50
6:42
#2838
20M
20.00 mi12:13:392:12:286:379:07
6:43
#2768
21M
21.00 mi12:20:362:19:256:386:57
6:57
#2674
35K
21.75 mi12:25:342:24:236:384:58
6:38
#2674
23M
23.00 mi12:34:052:32:546:398:31
6:48
#2638
24M
24.00 mi12:40:442:39:336:396:39
6:39
#2625
40K
24.85 mi12:46:362:45:256:395:52
6:52
#2638
25.2M
25.20 mi12:49:122:48:016:402:36
7:32
#2648
Finish
26.22 mi12:56:082:54:576:416:56
6:48
#2684
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2727259525952980(Top 11%)2844(Top 19%)2844(Top 54%)
10K6.21 mi3.10 mi3005-2782863-2682863-2683382(Top 13%)3211(Top 21%)3211(Top 61%)
15K9.32 mi3.11 mi2991+142851+122851+122980(Top 11%)2844(Top 19%)2844(Top 54%)
20K12.43 mi3.11 mi3023-322885-342885-343174(Top 12%)3016(Top 20%)3016(Top 57%)
Half13.11 mi0.68 mi3036-132897-122897-123489(Top 13%)3299(Top 22%)3299(Top 62%)
25K15.53 mi2.42 mi2997+392863+342863+343010(Top 11%)2868(Top 19%)2868(Top 54%)
30K18.64 mi3.11 mi2838+1592713+1502713+1502438(Top 9%)2320(Top 15%)2320(Top 44%)
20M20.00 mi1.36 mi2768+702644+692644+692345(Top 9%)2221(Top 15%)2221(Top 42%)
21M21.00 mi1.00 mi2674+942555+892555+891954(Top 7%)1849(Top 12%)1849(Top 35%)
35K21.75 mi0.75 mi26742557-22557-23282(Top 12%)3053(Top 20%)3053(Top 58%)
23M23.00 mi1.25 mi2638+362522+352522+352704(Top 10%)2530(Top 17%)2530(Top 48%)
24M24.00 mi1.00 mi2625+132509+132509+132879(Top 11%)2671(Top 18%)2671(Top 51%)
40K24.85 mi0.85 mi2638-132519-102519-103168(Top 12%)2899(Top 19%)2899(Top 55%)
25.2M25.20 mi0.35 mi2648-102527-82527-84200(Top 16%)3673(Top 24%)3673(Top 69%)
Finish26.22 mi1.02 mi2684-362554-272554-274129(Top 16%)3633(Top 24%)3633(Top 69%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

2980

Males

2844

M18-39

2844

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3382

Males

3211

M18-39

3211

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

2980

Males

2844

M18-39

2844

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3174

Males

3016

M18-39

3016

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3489

Males

3299

M18-39

3299

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3010

Males

2868

M18-39

2868

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2438

Males

2320

M18-39

2320

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2345

Males

2221

M18-39

2221

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1954

Males

1849

M18-39

1849

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3282

Males

3053

M18-39

3053

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2704

Males

2530

M18-39

2530

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2879

Males

2671

M18-39

2671

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3168

Males

2899

M18-39

2899

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4200

Males

3673

M18-39

3673

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4129

Males

3633

M18-39

3633

Passing Analysis

Category:
Athletes Passed
882
Passed By
839
Net Change
+43
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2727
5K → 10K64342-278#2727#3005
10K → 15K10187+14#3005#2991
15K → 20K70102-32#2991#3023
20K → Half1124-13#3023#3036
Half → 25K7839+39#3036#2997
25K → 30K17718+159#2997#2838
30K → 20M755+70#2838#2768
20M → 21M1006+94#2768#2674
21M → 35K24240#2674#2674
35K → 23M6125+36#2674#2638
23M → 24M5643+13#2638#2625
24M → 40K2942-13#2625#2638
40K → 25.2M818-10#2638#2648
25.2M → Finish2864-36#2648#2684
TOTALS882839+43
📊

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