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BOSTON MARATHON 2023

Dennis Mbelenzi

Bib: 78•M

NS

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 0.5%
Gender (Male)
#0 / 15176
Top 0.7%
Masters (Masters Men)
#0 / 9891
Top 0.1%
Division (M40-44)
#0 / 2241
Top 0.5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
16:17
Rank: #50
Start → 5K
16:17 | 5:14/mi
10K· 6.21 mi
33:08
Rank: #63 (-13)
5K → 10K
16:51 | 5:25/mi
15K· 9.32 mi
50:09
Rank: #74 (-11)
10K → 15K
17:01 | 5:29/mi
20K· 12.43 mi
1:07:35
Rank: #81 (-7)
15K → 20K
17:26 | 5:37/mi
Half· 13.11 mi
1:11:24
Rank: #85 (-4)
20K → Half
3:49 | 5:36/mi
25K· 15.53 mi
1:25:19
Rank: #105 (-20)
Half → 25K
13:55 | 5:44/mi
30K· 18.64 mi
1:43:53
Rank: #122 (-17)
25K → 30K
18:34 | 5:59/mi
20M
1:51:59
Rank: #125 (-3)
30K → 20M
8:06 | 5:58/mi
21M
1:58:25
Rank: #132 (-7)
20M → 21M
6:26 | 6:26/mi
35K· 21.75 mi
2:02:41
Rank: #132
21M → 35K
4:16 | 5:42/mi
23M
2:10:09
Rank: #129 (+3)
35K → 23M
7:28 | 5:58/mi
24M
2:15:51
Rank: #127 (+2)
23M → 24M
5:42 | 5:42/mi
40K· 24.85 mi
2:20:51
Rank: #127
24M → 40K
5:00 | 5:51/mi
25.2M
2:23:03
Rank: #127
40K → 25.2M
2:12 | 6:23/mi
Finish· 26.22 mi
2:28:58
Rank: #126 (+1)
25.2M → Finish
5:55 | 5:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:11:24
Pace5:27 /mi
2nd Half
Distance13.11 mi
Time1:17:34
Pace5:55 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi09:53:1816:175:1416:17
5:14
-
10K
6.21 mi10:10:0933:085:2016:51
5:25
+0:11
15K
9.32 mi10:27:1050:095:2317:01
5:29
+0:04
20K
12.43 mi10:44:361:07:355:2617:26
5:37
+0:08
Half
13.11 mi10:48:251:11:245:273:49
5:36
-0:01
25K
15.53 mi11:02:201:25:195:3013:55
5:44
+0:08
30K
18.64 mi11:20:541:43:535:3418:34
5:59
+0:15
20M
20.00 mi11:29:001:51:595:368:06
5:58
-0:01
21M
21.00 mi11:35:261:58:255:386:26
6:26
+0:28
35K
21.75 mi11:39:422:02:415:384:16
5:42
-0:44
23M
23.00 mi11:47:102:10:095:407:28
5:58
+0:16
24M
24.00 mi11:52:522:15:515:405:42
5:42
-0:16
40K
24.85 mi11:57:522:20:515:405:00
5:51
+0:09
25.2M
25.20 mi12:00:042:23:035:412:12
6:23
+0:32
Finish
26.22 mi12:05:592:28:585:415:55
5:48
-0:35

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

5:14 /mi

Average Pace

5:41 /mi

Slowest Pace

6:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

50:09

34% of race

Time at Steady Pace

56:03

38% of race

Time at Slower Pace

42:46

29% of race

Average Pace: 5:41 /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 mi09:53:1816:175:1416:17
5:14
#50
10K
6.21 mi10:10:0933:085:2016:51
5:25
#63
15K
9.32 mi10:27:1050:095:2317:01
5:29
#74
20K
12.43 mi10:44:361:07:355:2617:26
5:37
#81
Half
13.11 mi10:48:251:11:245:273:49
5:36
#85
25K
15.53 mi11:02:201:25:195:3013:55
5:44
#105
30K
18.64 mi11:20:541:43:535:3418:34
5:59
#122
20M
20.00 mi11:29:001:51:595:368:06
5:58
#125
21M
21.00 mi11:35:261:58:255:386:26
6:26
#132
35K
21.75 mi11:39:422:02:415:384:16
5:42
#132
23M
23.00 mi11:47:102:10:095:407:28
5:58
#129
24M
24.00 mi11:52:522:15:515:405:42
5:42
#127
40K
24.85 mi11:57:522:20:515:405:00
5:51
#127
25.2M
25.20 mi12:00:042:23:035:412:12
6:23
#127
Finish
26.22 mi12:05:592:28:585:415:55
5:48
#126
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi505050108(Top 0.4%)86(Top 0.6%)86(Top 4%)
10K6.21 mi3.10 mi63-1363-1363-1394(Top 0.4%)94(Top 0.6%)94(Top 4%)
15K9.32 mi3.11 mi74-1174-1174-11108(Top 0.4%)86(Top 0.6%)86(Top 4%)
20K12.43 mi3.11 mi81-781-781-7145(Top 0.5%)124(Top 0.8%)124(Top 6%)
Half13.11 mi0.68 mi85-485-485-4179(Top 0.7%)157(Top 1%)157(Top 7%)
25K15.53 mi2.42 mi105-2089-489-4199(Top 0.7%)177(Top 1%)177(Top 8%)
30K18.64 mi3.11 mi122-17104-15104-15354(Top 1%)327(Top 2%)327(Top 15%)
20M20.00 mi1.36 mi125-3107-3107-3297(Top 1%)272(Top 2%)272(Top 12%)
21M21.00 mi1.00 mi132-7113-6113-6526(Top 2%)492(Top 3%)492(Top 22%)
35K21.75 mi0.75 mi132113113217(Top 0.8%)194(Top 1%)194(Top 9%)
23M23.00 mi1.25 mi129+3109+4109+4270(Top 1%)245(Top 2%)245(Top 11%)
24M24.00 mi1.00 mi127+2107+2107+2165(Top 0.6%)143(Top 0.9%)143(Top 6%)
40K24.85 mi0.85 mi127107107175(Top 0.7%)156(Top 1%)156(Top 7%)
25.2M25.20 mi0.35 mi127107107293(Top 1%)272(Top 2%)272(Top 12%)
Finish26.22 mi1.02 mi126+1106+1106+1370(Top 1%)351(Top 2%)351(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.4%
×21stories
+97ft-345ft

Overall

108

Males

86

M40-44

86

5K→10K

3.1 - 6.2 mi

Top 0.4%
×5stories
+79ft-138ft

Overall

94

Males

94

M40-44

94

10K→15K

6.2 - 9.3 mi

Top 0.4%
×3stories
+67ft-78ft

Overall

108

Males

86

M40-44

86

15K→20K

9.3 - 12.4 mi

Top 0.5%
×5stories
+106ft-86ft

Overall

145

Males

124

M40-44

124

20K→Half

12.4 - 13.1 mi

Top 0.7%
×2stories
+19ft-37ft

Overall

179

Males

157

M40-44

157

Half→25K

13.1 - 15.5 mi

Top 0.7%
×4stories
+66ft-88ft

Overall

199

Males

177

M40-44

177

25K→30K

15.5 - 18.6 mi

Top 1%
×9stories
+181ft-148ft

Overall

354

Males

327

M40-44

327

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

297

Males

272

M40-44

272

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

526

Males

492

M40-44

492

21M→35K

21.0 - 21.8 mi

Top 0.8%
×7stories
+17ft-86ft

Overall

217

Males

194

M40-44

194

35K→23M

21.8 - 23.0 mi

Top 1%
×5stories
+23ft-63ft

Overall

270

Males

245

M40-44

245

23M→24M

23.0 - 24.0 mi

Top 0.6%
×6stories
+12ft-82ft

Overall

165

Males

143

M40-44

143

24M→40K

24.0 - 24.9 mi

Top 0.7%
×1story
+6ft-20ft

Overall

175

Males

156

M40-44

156

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

293

Males

272

M40-44

272

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2stories
+22ft-21ft

Overall

370

Males

351

M40-44

351

Passing Analysis

Category:
Athletes Passed
22
Passed By
98
Net Change
-76
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#50
5K → 10K013-13#50#63
10K → 15K112-11#63#74
15K → 20K29-7#74#81
20K → Half04-4#81#85
Half → 25K323-20#85#105
25K → 30K219-17#105#122
30K → 20M14-3#122#125
20M → 21M07-7#125#132
21M → 35K000#132#132
35K → 23M52+3#132#129
23M → 24M31+2#129#127
24M → 40K110#127#127
40K → 25.2M110#127#127
25.2M → Finish32+1#127#126
TOTALS2298-76
📊

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