Boston Marathon logo
BOSTON MARATHON 2023

Clinton Lawhorne

Bib: 11141•M

MI

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 32%
Gender (Male)
#0 / 15176
Top 47%
Masters (Masters Men)
#0 / 9891
Top 34%
Division (M50-54)
#0 / 2052
Top 30%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:24
Rank: #9890
Start → 5K
23:24 | 7:32/mi
10K· 6.21 mi
46:44
Rank: #10220 (-330)
5K → 10K
23:20 | 7:31/mi
15K· 9.32 mi
1:09:30
Rank: #9659 (+561)
10K → 15K
22:46 | 7:20/mi
20K· 12.43 mi
1:32:26
Rank: #9301 (+358)
15K → 20K
22:56 | 7:23/mi
Half· 13.11 mi
1:37:26
Rank: #9270 (+31)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:55:18
Rank: #9000 (+270)
Half → 25K
17:52 | 7:22/mi
30K· 18.64 mi
2:18:20
Rank: #8524 (+476)
25K → 30K
23:02 | 7:25/mi
20M
2:28:40
Rank: #8420 (+104)
30K → 20M
10:20 | 7:36/mi
21M
2:36:41
Rank: #8358 (+62)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:42:17
Rank: #8349 (+9)
21M → 35K
5:36 | 7:29/mi
23M
2:52:12
Rank: #8372 (-23)
35K → 23M
9:55 | 7:55/mi
24M
3:00:05
Rank: #8427 (-55)
23M → 24M
7:53 | 7:53/mi
40K· 24.85 mi
3:06:52
Rank: #8455 (-28)
24M → 40K
6:47 | 7:56/mi
25.2M
3:09:46
Rank: #8452 (+3)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:17:39
Rank: #8516 (-64)
25.2M → Finish
7:53 | 7:44/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
Time1:37:26
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:40:13
Pace7:39 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2723:247:3223:24
7:32
-
10K
6.21 mi11:13:4746:447:3123:20
7:31
-0:01
15K
9.32 mi11:36:331:09:307:2722:46
7:20
-0:11
20K
12.43 mi11:59:291:32:267:2622:56
7:23
+0:03
Half
13.11 mi12:04:291:37:267:265:00
7:20
-0:03
25K
15.53 mi12:22:211:55:187:2517:52
7:22
+0:02
30K
18.64 mi12:45:232:18:207:2523:02
7:25
+0:03
20M
20.00 mi12:55:432:28:407:2610:20
7:36
+0:11
21M
21.00 mi13:03:442:36:417:288:01
8:01
+0:25
35K
21.75 mi13:09:202:42:177:285:36
7:29
-0:32
23M
23.00 mi13:19:152:52:127:299:55
7:55
+0:26
24M
24.00 mi13:27:083:00:057:307:53
7:53
-0:02
40K
24.85 mi13:33:553:06:527:316:47
7:56
+0:03
25.2M
25.20 mi13:36:493:09:467:322:54
8:25
+0:29
Finish
26.22 mi13:44:423:17:397:337:53
7:44
-0:41

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

7:20 /mi

Average Pace

7:33 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:45

99% of race

Time at Steady Pace

2:54

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:32 /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 mi10:50:2723:247:3223:24
7:32
#9890
10K
6.21 mi11:13:4746:447:3123:20
7:31
#10220
15K
9.32 mi11:36:331:09:307:2722:46
7:20
#9659
20K
12.43 mi11:59:291:32:267:2622:56
7:23
#9301
Half
13.11 mi12:04:291:37:267:265:00
7:20
#9270
25K
15.53 mi12:22:211:55:187:2517:52
7:22
#9000
30K
18.64 mi12:45:232:18:207:2523:02
7:25
#8524
20M
20.00 mi12:55:432:28:407:2610:20
7:36
#8420
21M
21.00 mi13:03:442:36:417:288:01
8:01
#8358
35K
21.75 mi13:09:202:42:177:285:36
7:29
#8349
23M
23.00 mi13:19:152:52:127:299:55
7:55
#8372
24M
24.00 mi13:27:083:00:057:307:53
7:53
#8427
40K
24.85 mi13:33:553:06:527:316:47
7:56
#8455
25.2M
25.20 mi13:36:493:09:467:322:54
8:25
#8452
Finish
26.22 mi13:44:423:17:397:337:53
7:44
#8516
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9890806980698784(Top 33%)7413(Top 49%)7413(Top 361%)
10K6.21 mi3.10 mi10220-3308270-2018270-20110516(Top 40%)8434(Top 56%)8434(Top 411%)
15K9.32 mi3.11 mi9659+5617956+3147956+3148784(Top 33%)7413(Top 49%)7413(Top 361%)
20K12.43 mi3.11 mi9301+3587728+2287728+2288368(Top 31%)7111(Top 47%)7111(Top 347%)
Half13.11 mi0.68 mi9270+317710+187710+188781(Top 33%)7372(Top 49%)7372(Top 359%)
25K15.53 mi2.42 mi9000+2707545+1657545+1657758(Top 29%)6646(Top 44%)6646(Top 324%)
30K18.64 mi3.11 mi8524+4767205+3407205+3406683(Top 25%)5857(Top 39%)5857(Top 285%)
20M20.00 mi1.36 mi8420+1047119+867119+867520(Top 28%)6296(Top 41%)6296(Top 307%)
21M21.00 mi1.00 mi8358+627062+577062+577445(Top 28%)6149(Top 41%)6149(Top 300%)
35K21.75 mi0.75 mi8349+97048+147048+148421(Top 32%)6752(Top 44%)6752(Top 329%)
23M23.00 mi1.25 mi8372-237044+47044+49184(Top 34%)7052(Top 46%)7052(Top 344%)
24M24.00 mi1.00 mi8427-557055-117055-1110376(Top 39%)7585(Top 50%)7585(Top 370%)
40K24.85 mi0.85 mi8455-287049+67049+69554(Top 36%)7101(Top 47%)7101(Top 346%)
25.2M25.20 mi0.35 mi8452+37038+117038+118908(Top 33%)6681(Top 44%)6681(Top 326%)
Finish26.22 mi1.02 mi8516-647059-217059-2110186(Top 38%)7386(Top 49%)7386(Top 360%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8784

Males

7413

M50-54

7413

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10516

Males

8434

M50-54

8434

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8784

Males

7413

M50-54

7413

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8368

Males

7111

M50-54

7111

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

8781

Males

7372

M50-54

7372

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

7758

Males

6646

M50-54

6646

25K→30K

15.5 - 18.6 mi

Top 25%
×9stories
+181ft-148ft

Overall

6683

Males

5857

M50-54

5857

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7520

Males

6296

M50-54

6296

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7445

Males

6149

M50-54

6149

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8421

Males

6752

M50-54

6752

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

9184

Males

7052

M50-54

7052

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10376

Males

7585

M50-54

7585

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9554

Males

7101

M50-54

7101

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8908

Males

6681

M50-54

6681

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10186

Males

7386

M50-54

7386

Passing Analysis

Category:
Athletes Passed
2478*
Passed By
1103
Net Change
+1374
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9890
5K → 10K181510-330#9890#10220
10K → 15K579*18+561#10220#9659
15K → 20K37517+358#9659#9301
20K → Half4716+31#9301#9270
Half → 25K28111+270#9270#9000
25K → 30K4837+476#9000#8524
30K → 20M13834+104#8524#8420
20M → 21M10038+62#8420#8358
21M → 35K4940+9#8358#8349
35K → 23M7598-23#8349#8372
23M → 24M47102-55#8372#8427
24M → 40K4977-28#8427#8455
40K → 25.2M2926+3#8455#8452
25.2M → Finish45109-64#8452#8516
TOTALS2478*1103+1374

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

📊

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