Boston Marathon logo
BOSTON MARATHON 2023

Thabang Letheo

Bib: 3139•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 48%
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
20:59
Rank: #4205
Start → 5K
6:45/mi
20:59 split
10K· 6.21 mi
42:03
Rank: #4677 (-472)
5K → 10K
6:47/mi
21:04 split
15K· 9.32 mi
1:03:21
Rank: #4980 (-303)
10K → 15K
6:51/mi
21:18 split
20K· 12.43 mi
1:24:47
Rank: #5052 (-72)
15K → 20K
6:54/mi
21:26 split
Half· 13.11 mi
1:29:29
Rank: #5122 (-70)
20K → Half
6:53/mi
4:42 split
25K· 15.53 mi
1:47:12
Rank: #5586 (-464)
Half → 25K
7:18/mi
17:43 split
30K· 18.64 mi
2:12:07
Rank: #6337 (-751)
25K → 30K
8:01/mi
24:55 split
20M
2:23:28
Rank: #6669 (-332)
30K → 20M
8:21/mi
11:21 split
21M
2:32:34
Rank: #6950 (-281)
20M → 21M
9:06/mi
9:06 split
35K· 21.75 mi
2:38:47
Rank: #7178 (-228)
21M → 35K
8:19/mi
6:13 split
23M
2:49:44
Rank: #7523 (-345)
35K → 23M
8:45/mi
10:57 split
24M
2:58:22
Rank: #7885 (-362)
23M → 24M
8:38/mi
8:38 split
40K· 24.85 mi
3:06:09
Rank: #8234 (-349)
24M → 40K
9:06/mi
7:47 split
25.2M
3:09:36
Rank: #8395 (-161)
40K → 25.2M
10:00/mi
3:27 split
Finish· 26.22 mi
3:18:55
Rank: #8857 (-462)
25.2M → Finish
9:09/mi
9:19 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
Time1:29:29
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:49:26
Pace8:21 /mi
📊Positive Split: 22.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2420:596:4520:59
6:45
-
10K
6.21 mi10:43:2842:036:4621:04
6:47
+0:02
15K
9.32 mi11:04:461:03:216:4821:18
6:51
+0:04
20K
12.43 mi11:26:121:24:476:4921:26
6:54
+0:03
Half
13.11 mi11:30:541:29:296:504:42
6:53
-0:01
25K
15.53 mi11:48:371:47:126:5417:43
7:18
+0:25
30K
18.64 mi12:13:322:12:077:0524:55
8:01
+0:43
20M
20.00 mi12:24:532:23:287:1011:21
8:21
+0:20
21M
21.00 mi12:33:592:32:347:169:06
9:06
+0:45
35K
21.75 mi12:40:122:38:477:186:13
8:19
-0:47
23M
23.00 mi12:51:092:49:447:2310:57
8:45
+0:26
24M
24.00 mi12:59:472:58:227:268:38
8:38
-0:07
40K
24.85 mi13:07:343:06:097:297:47
9:06
+0:28
25.2M
25.20 mi13:11:013:09:367:313:27
10:00
+0:54
Finish
26.22 mi13:20:203:18:557:369:19
9:09
-0:51

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

6:45 /mi

Average Pace

7:36 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:12

54% of race

Time at Steady Pace

1:02:04

31% of race

Time at Slower Pace

29:39

15% of race

Average Pace: 7:35 /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 mi10:22:2420:596:4520:59
6:45
#4205
10K
6.21 mi10:43:2842:036:4621:04
6:47
#4677
15K
9.32 mi11:04:461:03:216:4821:18
6:51
#4980
20K
12.43 mi11:26:121:24:476:4921:26
6:54
#5052
Half
13.11 mi11:30:541:29:296:504:42
6:53
#5122
25K
15.53 mi11:48:371:47:126:5417:43
7:18
#5586
30K
18.64 mi12:13:322:12:077:0524:55
8:01
#6337
20M
20.00 mi12:24:532:23:287:1011:21
8:21
#6669
21M
21.00 mi12:33:592:32:347:169:06
9:06
#6950
35K
21.75 mi12:40:122:38:477:186:13
8:19
#7178
23M
23.00 mi12:51:092:49:447:2310:57
8:45
#7523
24M
24.00 mi12:59:472:58:227:268:38
8:38
#7885
40K
24.85 mi13:07:343:06:097:297:47
9:06
#8234
25.2M
25.20 mi13:11:013:09:367:313:27
10:00
#8395
Finish
26.22 mi13:20:203:18:557:369:19
9:09
#8857
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4205394139415628(Top 21%)5170(Top 34%)5170(Top 98%)
10K6.21 mi3.10 mi4677-4724362-4214362-4215114(Top 19%)4732(Top 31%)4732(Top 90%)
15K9.32 mi3.11 mi4980-3034624-2624624-2625628(Top 21%)5170(Top 34%)5170(Top 98%)
20K12.43 mi3.11 mi5052-724692-684692-685353(Top 20%)4943(Top 33%)4943(Top 94%)
Half13.11 mi0.68 mi5122-704753-614753-615961(Top 22%)5470(Top 36%)5470(Top 104%)
25K15.53 mi2.42 mi5586-4645147-3945147-3947331(Top 28%)6375(Top 42%)6375(Top 121%)
30K18.64 mi3.11 mi6337-7515719-5725719-57211042(Top 41%)8360(Top 55%)8360(Top 158%)
20M20.00 mi1.36 mi6669-3325953-2345953-23412666(Top 48%)8975(Top 59%)8975(Top 170%)
21M21.00 mi1.00 mi6950-2816154-2016154-20113951(Top 52%)9464(Top 62%)9464(Top 179%)
35K21.75 mi0.75 mi7178-2286303-1496303-14914094(Top 53%)9449(Top 62%)9449(Top 179%)
23M23.00 mi1.25 mi7523-3456502-1996502-19914632(Top 55%)9634(Top 63%)9634(Top 182%)
24M24.00 mi1.00 mi7885-3626715-2136715-21315229(Top 57%)9838(Top 65%)9838(Top 186%)
40K24.85 mi0.85 mi8234-3496913-1986913-19816612(Top 62%)10395(Top 68%)10395(Top 197%)
25.2M25.20 mi0.35 mi8395-1617004-917004-9117309(Top 65%)10662(Top 70%)10662(Top 202%)
Finish26.22 mi1.02 mi8857-4627265-2617265-26118617(Top 70%)11350(Top 75%)11350(Top 215%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21story building
+97ft-345ft

Overall

5628

Males

5170

M18-39

5170

5K→10K

3.1 - 6.2 mi

Top 19%
×5story building
+79ft-138ft

Overall

5114

Males

4732

M18-39

4732

10K→15K

6.2 - 9.3 mi

Top 21%
×3story building
+67ft-78ft

Overall

5628

Males

5170

M18-39

5170

15K→20K

9.3 - 12.4 mi

Top 20%
×5story building
+106ft-86ft

Overall

5353

Males

4943

M18-39

4943

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

5961

Males

5470

M18-39

5470

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

7331

Males

6375

M18-39

6375

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

11042

Males

8360

M18-39

8360

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12666

Males

8975

M18-39

8975

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

13951

Males

9464

M18-39

9464

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14094

Males

9449

M18-39

9449

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

14632

Males

9634

M18-39

9634

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15229

Males

9838

M18-39

9838

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16612

Males

10395

M18-39

10395

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17309

Males

10662

M18-39

10662

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

18617

Males

11350

M18-39

11350

Passing Analysis

Category:
Athletes Passed
315
Passed By
4967
Net Change
-4652
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4205
5K → 10K67539-472#4205#4677
10K → 15K37340-303#4677#4980
15K → 20K84156-72#4980#5052
20K → Half474-70#5052#5122
Half → 25K20484-464#5122#5586
25K → 30K21772-751#5586#6337
30K → 20M8340-332#6337#6669
20M → 21M14295-281#6669#6950
21M → 35K4232-228#6950#7178
35K → 23M24369-345#7178#7523
23M → 24M13375-362#7523#7885
24M → 40K11360-349#7885#8234
40K → 25.2M4165-161#8234#8395
25.2M → Finish4466-462#8395#8857
TOTALS3154967-4652
📊

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