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BOSTON MARATHON 2023

Jovan Sematimba

Bib: 2348•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 24%
Gender (Male)
#0 / 15176
Top 37%
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
19:18
Rank: #1160
Start → 5K
19:18 | 6:13/mi
10K· 6.21 mi
38:19
Rank: #1129 (+31)
5K → 10K
19:01 | 6:07/mi
15K· 9.32 mi
57:43
Rank: #1177 (-48)
10K → 15K
19:24 | 6:15/mi
20K· 12.43 mi
1:17:11
Rank: #1188 (-11)
15K → 20K
19:28 | 6:16/mi
Half· 13.11 mi
1:21:29
Rank: #1204 (-16)
20K → Half
4:18 | 6:18/mi
25K· 15.53 mi
1:37:07
Rank: #1293 (-89)
Half → 25K
15:38 | 6:27/mi
30K· 18.64 mi
1:58:48
Rank: #1641 (-348)
25K → 30K
21:41 | 6:59/mi
20M
2:09:09
Rank: #1923 (-282)
30K → 20M
10:21 | 7:37/mi
21M
2:18:12
Rank: #2396 (-473)
20M → 21M
9:03 | 9:03/mi
35K· 21.75 mi
2:26:21
Rank: #3290 (-894)
21M → 35K
8:09 | 10:54/mi
23M
2:44:14
Rank: #6049 (-2759)
35K → 23M
17:53 | 14:17/mi
24M
2:52:25
Rank: #6224 (-175)
23M → 24M
8:11 | 8:11/mi
40K· 24.85 mi
2:59:38
Rank: #6397 (-173)
24M → 40K
7:13 | 8:26/mi
25.2M
3:02:29
Rank: #6400 (-3)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:09:45
Rank: #6363 (+37)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:29
Pace6:13 /mi
2nd Half
Distance13.11 mi
Time1:48:16
Pace8:16 /mi
📊Positive Split: 32.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3619:186:1319:18
6:13
-
10K
6.21 mi10:39:3738:196:1019:01
6:07
-0:06
15K
9.32 mi10:59:0157:436:1219:24
6:15
+0:08
20K
12.43 mi11:18:291:17:116:1319:28
6:16
+0:01
Half
13.11 mi11:22:471:21:296:134:18
6:18
+0:02
25K
15.53 mi11:38:251:37:076:1515:38
6:27
+0:09
30K
18.64 mi12:00:061:58:486:2221:41
6:59
+0:32
20M
20.00 mi12:10:272:09:096:2710:21
7:37
+0:38
21M
21.00 mi12:19:302:18:126:359:03
9:03
+1:26
35K
21.75 mi12:27:392:26:216:448:09
10:54
+1:51
23M
23.00 mi12:45:322:44:147:0817:53
14:17
+3:23
24M
24.00 mi12:53:432:52:257:118:11
8:11
-6:06
40K
24.85 mi13:00:562:59:387:147:13
8:26
+0:15
25.2M
25.20 mi13:03:473:02:297:142:51
8:16
-0:10
Finish
26.22 mi13:11:033:09:457:157:16
7:08
-1:08

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

6:07 /mi

Average Pace

7:15 /mi

Slowest Pace

14:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:24:36

76% of race

Time at Slower Pace

45:09

24% of race

Average Pace: 7:14 /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 mi10:20:3619:186:1319:18
6:13
#1160
10K
6.21 mi10:39:3738:196:1019:01
6:07
#1129
15K
9.32 mi10:59:0157:436:1219:24
6:15
#1177
20K
12.43 mi11:18:291:17:116:1319:28
6:16
#1188
Half
13.11 mi11:22:471:21:296:134:18
6:18
#1204
25K
15.53 mi11:38:251:37:076:1515:38
6:27
#1293
30K
18.64 mi12:00:061:58:486:2221:41
6:59
#1641
20M
20.00 mi12:10:272:09:096:2710:21
7:37
#1923
21M
21.00 mi12:19:302:18:126:359:03
9:03
#2396
35K
21.75 mi12:27:392:26:216:448:09
10:54
#3290
23M
23.00 mi12:45:322:44:147:0817:53
14:17
#6049
24M
24.00 mi12:53:432:52:257:118:11
8:11
#6224
40K
24.85 mi13:00:562:59:387:147:13
8:26
#6397
25.2M
25.20 mi13:03:473:02:297:142:51
8:16
#6400
Finish
26.22 mi13:11:033:09:457:157:16
7:08
#6363
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1160109810981417(Top 5%)1350(Top 9%)1350(Top 26%)
10K6.21 mi3.10 mi1129+311067+311067+311101(Top 4%)1044(Top 7%)1044(Top 20%)
15K9.32 mi3.11 mi1177-481117-501117-501417(Top 5%)1350(Top 9%)1350(Top 26%)
20K12.43 mi3.11 mi1188-111131-141131-141275(Top 5%)1220(Top 8%)1220(Top 23%)
Half13.11 mi0.68 mi1204-161147-161147-161829(Top 7%)1758(Top 12%)1758(Top 33%)
25K15.53 mi2.42 mi1293-891234-871234-871952(Top 7%)1869(Top 12%)1869(Top 35%)
30K18.64 mi3.11 mi1641-3481569-3351569-3354229(Top 16%)3943(Top 26%)3943(Top 75%)
20M20.00 mi1.36 mi1923-2821841-2721841-2727565(Top 28%)6310(Top 42%)6310(Top 119%)
21M21.00 mi1.00 mi2396-4732295-4542295-45413651(Top 51%)9330(Top 61%)9330(Top 177%)
35K21.75 mi0.75 mi3290-8943116-8213116-82123101(Top 87%)13427(Top 88%)13427(Top 254%)
23M23.00 mi1.25 mi6049-27595457-23415457-234125988(Top 98%)14832(Top 98%)14832(Top 281%)
24M24.00 mi1.00 mi6224-1755583-1265583-12612447(Top 47%)8593(Top 57%)8593(Top 163%)
40K24.85 mi0.85 mi6397-1735695-1125695-11212918(Top 49%)8724(Top 57%)8724(Top 165%)
25.2M25.20 mi0.35 mi6400-35696-15696-17971(Top 30%)6131(Top 40%)6131(Top 116%)
Finish26.22 mi1.02 mi6363+375660+365660+365981(Top 22%)4920(Top 32%)4920(Top 93%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1417

Males

1350

M18-39

1350

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1101

Males

1044

M18-39

1044

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1417

Males

1350

M18-39

1350

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1275

Males

1220

M18-39

1220

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1829

Males

1758

M18-39

1758

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1952

Males

1869

M18-39

1869

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4229

Males

3943

M18-39

3943

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7565

Males

6310

M18-39

6310

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

13651

Males

9330

M18-39

9330

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

23101

Males

13427

M18-39

13427

35K→23M

21.8 - 23.0 mi

Top 98%
×5stories
+23ft-63ft

Overall

25988

Males

14832

M18-39

14832

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

12447

Males

8593

M18-39

8593

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12918

Males

8724

M18-39

8724

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7971

Males

6131

M18-39

6131

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

5981

Males

4920

M18-39

4920

Passing Analysis

Category:
Athletes Passed
264
Passed By
5467
Net Change
-5203
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1160
5K → 10K7948+31#1160#1129
10K → 15K1664-48#1129#1177
15K → 20K2839-11#1177#1188
20K → Half117-16#1188#1204
Half → 25K796-89#1204#1293
25K → 30K10358-348#1293#1641
30K → 20M0282-282#1641#1923
20M → 21M0473-473#1923#2396
21M → 35K0894-894#2396#3290
35K → 23M02759-2759#3290#6049
23M → 24M27202-175#6049#6224
24M → 40K12185-173#6224#6397
40K → 25.2M2225-3#6397#6400
25.2M → Finish6225+37#6400#6363
TOTALS2645467-5203
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing