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BOSTON MARATHON 2023

Daniel Ugwu

Bib: 31442•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
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
27:41
Rank: #20033
Start → 5K
27:41 | 8:55/mi
10K· 6.21 mi
54:39
Rank: #19641 (+392)
5K → 10K
26:58 | 8:41/mi
15K· 9.32 mi
1:21:31
Rank: #19305 (+336)
10K → 15K
26:52 | 8:39/mi
20K· 12.43 mi
1:48:31
Rank: #18964 (+341)
15K → 20K
27:00 | 8:41/mi
Half· 13.11 mi
1:54:20
Rank: #18916 (+48)
20K → Half
5:49 | 8:32/mi
25K· 15.53 mi
2:15:39
Rank: #18754 (+162)
Half → 25K
21:19 | 8:48/mi
30K· 18.64 mi
2:43:05
Rank: #18274 (+480)
25K → 30K
27:26 | 8:50/mi
20M
2:54:56
Rank: #18011 (+263)
30K → 20M
11:51 | 8:43/mi
21M
3:03:46
Rank: #17692 (+319)
20M → 21M
8:50 | 8:50/mi
35K· 21.75 mi
3:09:37
Rank: #17456 (+236)
21M → 35K
5:51 | 7:49/mi
23M
3:19:44
Rank: #17068 (+388)
35K → 23M
10:07 | 8:05/mi
24M
3:27:48
Rank: #16871 (+197)
23M → 24M
8:04 | 8:04/mi
40K· 24.85 mi
3:34:36
Rank: #16605 (+266)
24M → 40K
6:48 | 7:57/mi
25.2M
3:37:32
Rank: #16480 (+125)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:45:07
Rank: #16206 (+274)
25.2M → Finish
7:35 | 7:26/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:54:20
Pace8:43 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:50:47
Pace8:27 /mi
📊Negative Split: 3.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:0927:418:5527:41
8:55
-
10K
6.21 mi12:19:0754:398:4826:58
8:41
-0:14
15K
9.32 mi12:45:591:21:318:4526:52
8:39
-0:02
20K
12.43 mi13:12:591:48:318:4427:00
8:41
+0:02
Half
13.11 mi13:18:481:54:208:435:49
8:32
-0:09
25K
15.53 mi13:40:072:15:398:4421:19
8:48
+0:16
30K
18.64 mi14:07:332:43:058:4527:26
8:50
+0:02
20M
20.00 mi14:19:242:54:568:4511:51
8:43
-0:07
21M
21.00 mi14:28:143:03:468:458:50
8:50
+0:07
35K
21.75 mi14:34:053:09:378:435:51
7:49
-1:01
23M
23.00 mi14:44:123:19:448:4110:07
8:05
+0:16
24M
24.00 mi14:52:163:27:488:408:04
8:04
-0:01
40K
24.85 mi14:59:043:34:368:386:48
7:57
-0:07
25.2M
25.20 mi15:02:003:37:328:382:56
8:30
+0:33
Finish
26.22 mi15:09:353:45:078:367:35
7:26
-1:04

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

7:26 /mi

Average Pace

8:36 /mi

Slowest Pace

8:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:25

17% of race

Time at Steady Pace

1:41:26

45% of race

Time at Slower Pace

1:25:16

38% of race

Average Pace: 8:35 /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 mi11:52:0927:418:5527:41
8:55
#20033
10K
6.21 mi12:19:0754:398:4826:58
8:41
#19641
15K
9.32 mi12:45:591:21:318:4526:52
8:39
#19305
20K
12.43 mi13:12:591:48:318:4427:00
8:41
#18964
Half
13.11 mi13:18:481:54:208:435:49
8:32
#18916
25K
15.53 mi13:40:072:15:398:4421:19
8:48
#18754
30K
18.64 mi14:07:332:43:058:4527:26
8:50
#18274
20M
20.00 mi14:19:242:54:568:4511:51
8:43
#18011
21M
21.00 mi14:28:143:03:468:458:50
8:50
#17692
35K
21.75 mi14:34:053:09:378:435:51
7:49
#17456
23M
23.00 mi14:44:123:19:448:4110:07
8:05
#17068
24M
24.00 mi14:52:163:27:488:408:04
8:04
#16871
40K
24.85 mi14:59:043:34:368:386:48
7:57
#16605
25.2M
25.20 mi15:02:003:37:328:382:56
8:30
#16480
Finish
26.22 mi15:09:353:45:078:367:35
7:26
#16206
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi20033121731217318705(Top 70%)11757(Top 77%)11757(Top 222%)
10K6.21 mi3.10 mi19641+39212061+11212061+11219296(Top 72%)12009(Top 79%)12009(Top 227%)
15K9.32 mi3.11 mi19305+33611963+9811963+9818705(Top 70%)11757(Top 77%)11757(Top 222%)
20K12.43 mi3.11 mi18964+34111843+12011843+12018044(Top 68%)11484(Top 76%)11484(Top 217%)
Half13.11 mi0.68 mi18916+4811823+2011823+2017800(Top 67%)11406(Top 75%)11406(Top 216%)
25K15.53 mi2.42 mi18754+16211749+7411749+7417895(Top 67%)11359(Top 75%)11359(Top 215%)
30K18.64 mi3.11 mi18274+48011528+22111528+22116237(Top 61%)10581(Top 70%)10581(Top 200%)
20M20.00 mi1.36 mi18011+26311399+12911399+12914975(Top 56%)9985(Top 66%)9985(Top 189%)
21M21.00 mi1.00 mi17692+31911266+13311266+13312446(Top 47%)8783(Top 58%)8783(Top 166%)
35K21.75 mi0.75 mi17456+23611156+11011156+11010807(Top 41%)8030(Top 53%)8030(Top 152%)
23M23.00 mi1.25 mi17068+38810987+16910987+16910307(Top 39%)7645(Top 50%)7645(Top 145%)
24M24.00 mi1.00 mi16871+19710885+10210885+10211697(Top 44%)8265(Top 54%)8265(Top 156%)
40K24.85 mi0.85 mi16605+26610751+13410751+1349733(Top 37%)7211(Top 48%)7211(Top 136%)
25.2M25.20 mi0.35 mi16480+12510694+5710694+579574(Top 36%)7100(Top 47%)7100(Top 134%)
Finish26.22 mi1.02 mi16206+27410575+11910575+1198092(Top 30%)6228(Top 41%)6228(Top 118%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

18705

Males

11757

M18-39

11757

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

19296

Males

12009

M18-39

12009

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

18705

Males

11757

M18-39

11757

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

18044

Males

11484

M18-39

11484

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

17800

Males

11406

M18-39

11406

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

17895

Males

11359

M18-39

11359

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

16237

Males

10581

M18-39

10581

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

14975

Males

9985

M18-39

9985

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12446

Males

8783

M18-39

8783

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10807

Males

8030

M18-39

8030

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

10307

Males

7645

M18-39

7645

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

11697

Males

8265

M18-39

8265

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9733

Males

7211

M18-39

7211

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9574

Males

7100

M18-39

7100

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

8092

Males

6228

M18-39

6228

Passing Analysis

Category:
Athletes Passed
4170
Passed By
343
Net Change
+3827
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20033
5K → 10K550158+392#20033#19641
10K → 15K40569+336#19641#19305
15K → 20K37736+341#19305#18964
20K → Half6214+48#18964#18916
Half → 25K19937+162#18916#18754
25K → 30K49515+480#18754#18274
30K → 20M2707+263#18274#18011
20M → 21M3201+319#18011#17692
21M → 35K2371+236#17692#17456
35K → 23M3913+388#17456#17068
23M → 24M1981+197#17068#16871
24M → 40K2660+266#16871#16605
40K → 25.2M1250+125#16605#16480
25.2M → Finish2751+274#16480#16206
TOTALS4170343+3827
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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