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BOSTON MARATHON 2023

Harrison Chuma

Bib: 30190•M

MA

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
30:38
Rank: #23080
Start → 5K
30:38 | 9:52/mi
10K· 6.21 mi
1:00:02
Rank: #22780 (+300)
5K → 10K
29:24 | 9:28/mi
15K· 9.32 mi
1:28:47
Rank: #22389 (+391)
10K → 15K
28:45 | 9:15/mi
20K· 12.43 mi
1:57:43
Rank: #22013 (+376)
15K → 20K
28:56 | 9:19/mi
Half· 13.11 mi
2:03:47
Rank: #21911 (+102)
20K → Half
6:04 | 8:54/mi
25K· 15.53 mi
2:25:21
Rank: #21477 (+434)
Half → 25K
21:34 | 8:54/mi
30K· 18.64 mi
2:54:00
Rank: #20946 (+531)
25K → 30K
28:39 | 9:13/mi
20M
3:06:43
Rank: #20723 (+223)
30K → 20M
12:43 | 9:21/mi
21M
3:15:52
Rank: #20439 (+284)
20M → 21M
9:09 | 9:09/mi
35K· 21.75 mi
3:22:09
Rank: #20266 (+173)
21M → 35K
6:17 | 8:24/mi
23M
3:32:46
Rank: #19933 (+333)
35K → 23M
10:37 | 8:29/mi
24M
3:40:51
Rank: #19667 (+266)
23M → 24M
8:05 | 8:05/mi
40K· 24.85 mi
3:47:35
Rank: #19406 (+261)
24M → 40K
6:44 | 7:53/mi
25.2M
3:50:30
Rank: #19280 (+126)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:58:00
Rank: #18947 (+333)
25.2M → Finish
7:30 | 7:22/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:03:47
Pace9:27 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:54:13
Pace8:43 /mi
📊Negative Split: 7.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:5930:389:5230:38
9:52
-
10K
6.21 mi12:21:231:00:029:4029:24
9:28
-0:24
15K
9.32 mi12:50:081:28:479:3228:45
9:15
-0:13
20K
12.43 mi13:19:041:57:439:2828:56
9:19
+0:04
Half
13.11 mi13:25:082:03:479:276:04
8:54
-0:25
25K
15.53 mi13:46:422:25:219:2121:34
8:54
0:00
30K
18.64 mi14:15:212:54:009:2028:39
9:13
+0:19
20M
20.00 mi14:28:043:06:439:2012:43
9:21
+0:08
21M
21.00 mi14:37:133:15:529:209:09
9:09
-0:12
35K
21.75 mi14:43:303:22:099:186:17
8:24
-0:45
23M
23.00 mi14:54:073:32:469:1510:37
8:29
+0:05
24M
24.00 mi15:02:123:40:519:128:05
8:05
-0:24
40K
24.85 mi15:08:563:47:359:096:44
7:53
-0:12
25.2M
25.20 mi15:11:513:50:309:092:55
8:27
+0:34
Finish
26.22 mi15:19:213:58:009:057:30
7:22
-1:05

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

7:22 /mi

Average Pace

9:05 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

42:08

18% of race

Time at Steady Pace

1:05:26

27% of race

Time at Slower Pace

2:10:26

55% of race

Average Pace: 9:05 /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 mi11:51:5930:389:5230:38
9:52
#23080
10K
6.21 mi12:21:231:00:029:4029:24
9:28
#22780
15K
9.32 mi12:50:081:28:479:3228:45
9:15
#22389
20K
12.43 mi13:19:041:57:439:2828:56
9:19
#22013
Half
13.11 mi13:25:082:03:479:276:04
8:54
#21911
25K
15.53 mi13:46:422:25:219:2121:34
8:54
#21477
30K
18.64 mi14:15:212:54:009:2028:39
9:13
#20946
20M
20.00 mi14:28:043:06:439:2012:43
9:21
#20723
21M
21.00 mi14:37:133:15:529:209:09
9:09
#20439
35K
21.75 mi14:43:303:22:099:186:17
8:24
#20266
23M
23.00 mi14:54:073:32:469:1510:37
8:29
#19933
24M
24.00 mi15:02:123:40:519:128:05
8:05
#19667
40K
24.85 mi15:08:563:47:359:096:44
7:53
#19406
25.2M
25.20 mi15:11:513:50:309:092:55
8:27
#19280
Finish
26.22 mi15:19:213:58:009:057:30
7:22
#18947
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23080136201362021482(Top 81%)12971(Top 85%)12971(Top 245%)
10K6.21 mi3.10 mi22780+30013513+10713513+10722401(Top 84%)13344(Top 88%)13344(Top 252%)
15K9.32 mi3.11 mi22389+39113331+18213331+18221482(Top 81%)12971(Top 85%)12971(Top 245%)
20K12.43 mi3.11 mi22013+37613148+18313148+18321007(Top 79%)12750(Top 84%)12750(Top 241%)
Half13.11 mi0.68 mi21911+10213107+4113107+4119919(Top 75%)12272(Top 81%)12272(Top 232%)
25K15.53 mi2.42 mi21477+43412922+18512922+18518429(Top 69%)11606(Top 76%)11606(Top 220%)
30K18.64 mi3.11 mi20946+53112676+24612676+24618255(Top 69%)11444(Top 75%)11444(Top 217%)
20M20.00 mi1.36 mi20723+22312564+11212564+11218258(Top 69%)11354(Top 75%)11354(Top 215%)
21M21.00 mi1.00 mi20439+28412427+13712427+13714209(Top 53%)9605(Top 63%)9605(Top 182%)
35K21.75 mi0.75 mi20266+17312334+9312334+9314713(Top 55%)9764(Top 64%)9764(Top 185%)
23M23.00 mi1.25 mi19933+33312184+15012184+15013090(Top 49%)8962(Top 59%)8962(Top 170%)
24M24.00 mi1.00 mi19667+26612072+11212072+11211823(Top 44%)8323(Top 55%)8323(Top 157%)
40K24.85 mi0.85 mi19406+26111953+11911953+1199181(Top 34%)6927(Top 46%)6927(Top 131%)
25.2M25.20 mi0.35 mi19280+12611896+5711896+579268(Top 35%)6928(Top 46%)6928(Top 131%)
Finish26.22 mi1.02 mi18947+33311744+15211744+1527520(Top 28%)5887(Top 39%)5887(Top 111%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

21482

Males

12971

M18-39

12971

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

22401

Males

13344

M18-39

13344

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

21482

Males

12971

M18-39

12971

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

21007

Males

12750

M18-39

12750

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

19919

Males

12272

M18-39

12272

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

18429

Males

11606

M18-39

11606

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

18255

Males

11444

M18-39

11444

30K→20M

18.6 - 20.0 mi

Top 69%
×5stories
+64ft-50ft

Overall

18258

Males

11354

M18-39

11354

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14209

Males

9605

M18-39

9605

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14713

Males

9764

M18-39

9764

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

13090

Males

8962

M18-39

8962

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

11823

Males

8323

M18-39

8323

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9181

Males

6927

M18-39

6927

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9268

Males

6928

M18-39

6928

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7520

Males

5887

M18-39

5887

Passing Analysis

Category:
Athletes Passed
4290
Passed By
157
Net Change
+4133
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23080
5K → 10K408108+300#23080#22780
10K → 15K41524+391#22780#22389
15K → 20K39115+376#22389#22013
20K → Half1020+102#22013#21911
Half → 25K4351+434#21911#21477
25K → 30K5354+531#21477#20946
30K → 20M2274+223#20946#20723
20M → 21M2840+284#20723#20439
21M → 35K1741+173#20439#20266
35K → 23M3330+333#20266#19933
23M → 24M2660+266#19933#19667
24M → 40K2610+261#19667#19406
40K → 25.2M1260+126#19406#19280
25.2M → Finish3330+333#19280#18947
TOTALS4290157+4133
📊

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