Boston Marathon logo
BOSTON MARATHON 2023

Caleb Maupin

Bib: 8487•M

BC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 43%
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
23:32
Rank: #10273
Start → 5K
23:32 | 7:34/mi
10K· 6.21 mi
46:54
Rank: #10438 (-165)
5K → 10K
23:22 | 7:31/mi
15K· 9.32 mi
1:10:10
Rank: #10301 (+137)
10K → 15K
23:16 | 7:29/mi
20K· 12.43 mi
1:33:20
Rank: #9912 (+389)
15K → 20K
23:10 | 7:27/mi
Half· 13.11 mi
1:38:25
Rank: #9907 (+5)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:56:27
Rank: #9611 (+296)
Half → 25K
18:02 | 7:26/mi
30K· 18.64 mi
2:20:02
Rank: #9247 (+364)
25K → 30K
23:35 | 7:35/mi
20M
2:30:14
Rank: #9035 (+212)
30K → 20M
10:12 | 7:30/mi
21M
2:37:58
Rank: #8825 (+210)
20M → 21M
7:44 | 7:44/mi
35K· 21.75 mi
2:43:20
Rank: #8706 (+119)
21M → 35K
5:22 | 7:10/mi
23M
2:52:26
Rank: #8440 (+266)
35K → 23M
9:06 | 7:16/mi
24M
2:59:31
Rank: #8245 (+195)
23M → 24M
7:05 | 7:05/mi
40K· 24.85 mi
3:05:31
Rank: #8018 (+227)
24M → 40K
6:00 | 7:01/mi
25.2M
3:08:04
Rank: #7920 (+98)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
3:14:47
Rank: #7675 (+245)
25.2M → Finish
6:43 | 6:35/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 Half
Distance13.11 mi
Time1:38:25
Pace7:30 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:36:22
Pace7:21 /mi
📊Negative Split: 2.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:0523:327:3423:32
7:34
-
10K
6.21 mi11:17:2746:547:3323:22
7:31
-0:03
15K
9.32 mi11:40:431:10:107:3223:16
7:29
-0:02
20K
12.43 mi12:03:531:33:207:3123:10
7:27
-0:02
Half
13.11 mi12:08:581:38:257:305:05
7:27
0:00
25K
15.53 mi12:27:001:56:277:3018:02
7:26
-0:01
30K
18.64 mi12:50:352:20:027:3123:35
7:35
+0:09
20M
20.00 mi13:00:472:30:147:3110:12
7:30
-0:05
21M
21.00 mi13:08:312:37:587:317:44
7:44
+0:14
35K
21.75 mi13:13:532:43:207:315:22
7:10
-0:34
23M
23.00 mi13:22:592:52:267:309:06
7:16
+0:06
24M
24.00 mi13:30:042:59:317:297:05
7:05
-0:11
40K
24.85 mi13:36:043:05:317:286:00
7:01
-0:04
25.2M
25.20 mi13:38:373:08:047:282:33
7:24
+0:23
Finish
26.22 mi13:45:203:14:477:266:43
6:35
-0:49

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

6:35 /mi

Average Pace

7:26 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:10

13% of race

Time at Steady Pace

2:49:37

87% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /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 mi10:54:0523:327:3423:32
7:34
#10273
10K
6.21 mi11:17:2746:547:3323:22
7:31
#10438
15K
9.32 mi11:40:431:10:107:3223:16
7:29
#10301
20K
12.43 mi12:03:531:33:207:3123:10
7:27
#9912
Half
13.11 mi12:08:581:38:257:305:05
7:27
#9907
25K
15.53 mi12:27:001:56:277:3018:02
7:26
#9611
30K
18.64 mi12:50:352:20:027:3123:35
7:35
#9247
20M
20.00 mi13:00:472:30:147:3110:12
7:30
#9035
21M
21.00 mi13:08:312:37:587:317:44
7:44
#8825
35K
21.75 mi13:13:532:43:207:315:22
7:10
#8706
23M
23.00 mi13:22:592:52:267:309:06
7:16
#8440
24M
24.00 mi13:30:042:59:317:297:05
7:05
#8245
40K
24.85 mi13:36:043:05:317:286:00
7:01
#8018
25.2M
25.20 mi13:38:373:08:047:282:33
7:24
#7920
Finish
26.22 mi13:45:203:14:477:266:43
6:35
#7675
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi102738271827110067(Top 38%)8176(Top 54%)8176(Top 155%)
10K6.21 mi3.10 mi10438-1658379-1088379-10810596(Top 40%)8475(Top 56%)8475(Top 160%)
15K9.32 mi3.11 mi10301+1378328+518328+5110067(Top 38%)8176(Top 54%)8176(Top 155%)
20K12.43 mi3.11 mi9912+3898097+2318097+2318951(Top 34%)7469(Top 49%)7469(Top 141%)
Half13.11 mi0.68 mi9907+5809780979731(Top 37%)7924(Top 52%)7924(Top 150%)
25K15.53 mi2.42 mi9611+2967903+1947903+1948288(Top 31%)6990(Top 46%)6990(Top 132%)
30K18.64 mi3.11 mi9247+3647654+2497654+2497872(Top 30%)6607(Top 44%)6607(Top 125%)
20M20.00 mi1.36 mi9035+2127503+1517503+1516821(Top 26%)5861(Top 39%)5861(Top 111%)
21M21.00 mi1.00 mi8825+2107366+1377366+1375816(Top 22%)5068(Top 33%)5068(Top 96%)
35K21.75 mi0.75 mi8706+1197269+977269+976369(Top 24%)5497(Top 36%)5497(Top 104%)
23M23.00 mi1.25 mi8440+2667087+1827087+1825157(Top 19%)4584(Top 30%)4584(Top 87%)
24M24.00 mi1.00 mi8245+1956940+1476940+1475127(Top 19%)4527(Top 30%)4527(Top 86%)
40K24.85 mi0.85 mi8018+2276775+1656775+1653955(Top 15%)3558(Top 23%)3558(Top 67%)
25.2M25.20 mi0.35 mi7920+986709+666709+663448(Top 13%)3131(Top 21%)3131(Top 59%)
Finish26.22 mi1.02 mi7675+2456531+1786531+1782964(Top 11%)2689(Top 18%)2689(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10067

Males

8176

M18-39

8176

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10596

Males

8475

M18-39

8475

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10067

Males

8176

M18-39

8176

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

8951

Males

7469

M18-39

7469

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9731

Males

7924

M18-39

7924

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8288

Males

6990

M18-39

6990

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

7872

Males

6607

M18-39

6607

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

6821

Males

5861

M18-39

5861

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5816

Males

5068

M18-39

5068

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6369

Males

5497

M18-39

5497

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5157

Males

4584

M18-39

4584

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5127

Males

4527

M18-39

4527

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

3955

Males

3558

M18-39

3558

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3448

Males

3131

M18-39

3131

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

2964

Males

2689

M18-39

2689

Passing Analysis

Category:
Athletes Passed
3211*
Passed By
613
Net Change
+2598
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10273
5K → 10K223*388-165#10273#10438
10K → 15K261124+137#10438#10301
15K → 20K411*22+389#10301#9912
20K → Half3126+5#9912#9907
Half → 25K30610+296#9907#9611
25K → 30K388*24+364#9611#9247
30K → 20M2164+212#9247#9035
20M → 21M2144+210#9035#8825
21M → 35K1234+119#8825#8706
35K → 23M2660+266#8706#8440
23M → 24M2005+195#8440#8245
24M → 40K2292+227#8245#8018
40K → 25.2M980+98#8018#7920
25.2M → Finish2450+245#7920#7675
TOTALS3211*613+2598

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

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