Boston Marathon logo
BOSTON MARATHON 2023

John Hampson

Bib: 27038•M

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
24:47
Rank: #13851
Start → 5K
7:59/mi
24:47 split
10K· 6.21 mi
49:45
Rank: #14432 (-581)
5K → 10K
8:02/mi
24:58 split
15K· 9.32 mi
1:14:51
Rank: #14572 (-140)
10K → 15K
8:05/mi
25:06 split
20K· 12.43 mi
1:41:08
Rank: #15154 (-582)
15K → 20K
8:28/mi
26:17 split
Half· 13.11 mi
1:47:04
Rank: #15358 (-204)
20K → Half
8:42/mi
5:56 split
25K· 15.53 mi
2:09:20
Rank: #16222 (-864)
Half → 25K
9:11/mi
22:16 split
30K· 18.64 mi
2:39:42
Rank: #17160 (-938)
25K → 30K
9:46/mi
30:22 split
20M
2:53:29
Rank: #17572 (-412)
30K → 20M
10:09/mi
13:47 split
21M
3:04:49
Rank: #17973 (-401)
20M → 21M
11:20/mi
11:20 split
35K· 21.75 mi
3:12:51
Rank: #18319 (-346)
21M → 35K
10:44/mi
8:02 split
23M
3:26:39
Rank: #18751 (-432)
35K → 23M
11:01/mi
13:48 split
24M
3:39:47
Rank: #19496 (-745)
23M → 24M
13:08/mi
13:08 split
40K· 24.85 mi
3:50:25
Rank: #19847 (-351)
24M → 40K
12:26/mi
10:38 split
25.2M
3:54:12
Rank: #19878 (-31)
40K → 25.2M
10:58/mi
3:47 split
Finish· 26.22 mi
4:03:55
Rank: #19893 (-15)
25.2M → Finish
9:32/mi
9:43 split

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
Time1:47:04
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time2:16:51
Pace10:26 /mi
📊Positive Split: 27.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:4824:477:5924:47
7:59
-
10K
6.21 mi12:06:4649:458:0024:58
8:02
+0:03
15K
9.32 mi12:31:521:14:518:0225:06
8:05
+0:03
20K
12.43 mi12:58:091:41:088:0826:17
8:28
+0:23
Half
13.11 mi13:04:051:47:048:105:56
8:42
+0:14
25K
15.53 mi13:26:212:09:208:2022:16
9:11
+0:29
30K
18.64 mi13:56:432:39:428:3430:22
9:46
+0:35
20M
20.00 mi14:10:302:53:298:4013:47
10:09
+0:23
21M
21.00 mi14:21:503:04:498:4811:20
11:20
+1:11
35K
21.75 mi14:29:523:12:518:528:02
10:44
-0:36
23M
23.00 mi14:43:403:26:398:5913:48
11:01
+0:17
24M
24.00 mi14:56:483:39:479:0913:08
13:08
+2:07
40K
24.85 mi15:07:263:50:259:1610:38
12:26
-0:42
25.2M
25.20 mi15:11:133:54:129:183:47
10:58
-1:28
Finish
26.22 mi15:20:564:03:559:199:43
9:32
-1:26

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

7:59 /mi

Average Pace

9:19 /mi

Slowest Pace

13:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:04

44% of race

Time at Steady Pace

1:16:08

31% of race

Time at Slower Pace

1:00:43

25% of race

Average Pace: 9:18 /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 mi11:41:4824:477:5924:47
7:59
#13851
10K
6.21 mi12:06:4649:458:0024:58
8:02
#14432
15K
9.32 mi12:31:521:14:518:0225:06
8:05
#14572
20K
12.43 mi12:58:091:41:088:0826:17
8:28
#15154
Half
13.11 mi13:04:051:47:048:105:56
8:42
#15358
25K
15.53 mi13:26:212:09:208:2022:16
9:11
#16222
30K
18.64 mi13:56:432:39:428:3430:22
9:46
#17160
20M
20.00 mi14:10:302:53:298:4013:47
10:09
#17572
21M
21.00 mi14:21:503:04:498:4811:20
11:20
#17973
35K
21.75 mi14:29:523:12:518:528:02
10:44
#18319
23M
23.00 mi14:43:403:26:398:5913:48
11:01
#18751
24M
24.00 mi14:56:483:39:479:0913:08
13:08
#19496
40K
24.85 mi15:07:263:50:259:1610:38
12:26
#19847
25.2M
25.20 mi15:11:133:54:129:183:47
10:58
#19878
Finish
26.22 mi15:20:564:03:559:199:43
9:32
#19893
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi138519903990315019(Top 56%)10315(Top 68%)10315(Top 195%)
10K6.21 mi3.10 mi14432-58110113-21010113-21015067(Top 57%)10341(Top 68%)10341(Top 196%)
15K9.32 mi3.11 mi14572-14010161-4810161-4815019(Top 56%)10315(Top 68%)10315(Top 195%)
20K12.43 mi3.11 mi15154-58210356-19510356-19516600(Top 62%)10875(Top 72%)10875(Top 206%)
Half13.11 mi0.68 mi15358-20410428-7210428-7218899(Top 71%)11864(Top 78%)11864(Top 224%)
25K15.53 mi2.42 mi16222-86410734-30610734-30619761(Top 74%)12177(Top 80%)12177(Top 230%)
30K18.64 mi3.11 mi17160-93811084-35011084-35020372(Top 77%)12367(Top 81%)12367(Top 234%)
20M20.00 mi1.36 mi17572-41211234-15011234-15020850(Top 78%)12496(Top 82%)12496(Top 236%)
21M21.00 mi1.00 mi17973-40111378-14411378-14421542(Top 81%)12761(Top 84%)12761(Top 241%)
35K21.75 mi0.75 mi18319-34611511-13311511-13322798(Top 86%)13291(Top 88%)13291(Top 251%)
23M23.00 mi1.25 mi18751-43211689-17811689-17822380(Top 84%)13098(Top 86%)13098(Top 248%)
24M24.00 mi1.00 mi19496-74511994-30511994-30525571(Top 96%)14586(Top 96%)14586(Top 276%)
40K24.85 mi0.85 mi19847-35112134-14012134-14024362(Top 92%)13964(Top 92%)13964(Top 264%)
25.2M25.20 mi0.35 mi19878-3112146-1212146-1220362(Top 76%)12089(Top 80%)12089(Top 229%)
Finish26.22 mi1.02 mi19893-1512141+512141+520240(Top 76%)12075(Top 80%)12075(Top 228%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

15019

Males

10315

M18-39

10315

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

15067

Males

10341

M18-39

10341

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

15019

Males

10315

M18-39

10315

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

16600

Males

10875

M18-39

10875

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18899

Males

11864

M18-39

11864

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19761

Males

12177

M18-39

12177

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

20372

Males

12367

M18-39

12367

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

20850

Males

12496

M18-39

12496

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

21542

Males

12761

M18-39

12761

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22798

Males

13291

M18-39

13291

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

22380

Males

13098

M18-39

13098

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

25571

Males

14586

M18-39

14586

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

24362

Males

13964

M18-39

13964

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20362

Males

12089

M18-39

12089

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

20240

Males

12075

M18-39

12075

Passing Analysis

Category:
Athletes Passed
483
Passed By
6525
Net Change
-6042
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13851
5K → 10K95676-581#13851#14432
10K → 15K146286-140#14432#14572
15K → 20K60642-582#14572#15154
20K → Half9213-204#15154#15358
Half → 25K21885-864#15358#16222
25K → 30K35973-938#16222#17160
30K → 20M18430-412#17160#17572
20M → 21M13414-401#17572#17973
21M → 35K6352-346#17973#18319
35K → 23M19451-432#18319#18751
23M → 24M6751-745#18751#19496
24M → 40K2353-351#19496#19847
40K → 25.2M2051-31#19847#19878
25.2M → Finish3348-15#19878#19893
TOTALS4836525-6042
📊

Passing Visuals

Category:
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