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BOSTON MARATHON 2023

Colby Haskell

Bib: 27551•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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:34/mi
26:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:39/mi
53:28
↑ 79↓ 1380.4%
15K· 9.32 mi
8:30/mi
1:19:51
↑ 67↓ 78
20K· 12.43 mi
8:39/mi
1:46:45
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:52:34
↑ 19↓ 370.5%
25K· 15.53 mi
8:48/mi
2:13:54
↑ 66↓ 880.2%
30K· 18.64 mi
8:52/mi
2:41:27
↑ 181↓ 1480.2%
20M
8:49/mi
2:53:26
↑ 64↓ 500.2%
21M
10:59/mi
3:04:25
↑ 106↓ 241.6%
35K· 21.75 mi
8:25/mi
3:10:43
↑ 17↓ 861.7%
23M
8:55/mi
3:21:53
↑ 23↓ 630.6%
24M
8:53/mi
3:30:46
↓ 821.3%
40K· 24.85 mi
9:23/mi
3:38:47
↓ 200.3%
25.2M
10:21/mi
3:42:21
↑ 13↓ 160.2%
Finish· 26.22 mi
8:20/mi
3:50:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:34
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time1:58:17
Pace9:01 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:3426:378:3426:37
8:34
-
10K
6.21 mi12:10:2553:288:3626:51
8:39
+0:05
15K
9.32 mi12:36:481:19:518:3426:23
8:30
-0:09
20K
12.43 mi13:03:421:46:458:3526:54
8:39
+0:09
Half
13.11 mi13:09:311:52:348:355:49
8:32
-0:07
25K
15.53 mi13:30:512:13:548:3721:20
8:48
+0:16
30K
18.64 mi13:58:242:41:278:4027:33
8:52
+0:04
20M
20.00 mi14:10:232:53:268:4011:59
8:49
-0:03
21M
21.00 mi14:21:223:04:258:4710:59
10:59
+2:10
35K
21.75 mi14:27:403:10:438:466:18
8:25
-2:34
23M
23.00 mi14:38:503:21:538:4711:10
8:55
+0:30
24M
24.00 mi14:47:433:30:468:478:53
8:53
-0:02
40K
24.85 mi14:55:443:38:478:488:01
9:23
+0:30
25.2M
25.20 mi14:59:183:42:218:493:34
10:21
+0:58
Finish
26.22 mi15:07:483:50:518:498:30
8:20
-2:01

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

8:20 /mi

Average Pace

8:49 /mi

Slowest Pace

10:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:48

6% of race

Time at Steady Pace

3:13:29

84% of race

Time at Slower Pace

22:34

10% of race

Average Pace: 8:48 /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 mi11:43:3426:378:3426:37
8:34
#18012
10K
6.21 mi12:10:2553:288:3626:51
8:39
#18540
15K
9.32 mi12:36:481:19:518:3426:23
8:30
#18273
20K
12.43 mi13:03:421:46:458:3526:54
8:39
#18142
Half
13.11 mi13:09:311:52:348:355:49
8:32
#18121
25K
15.53 mi13:30:512:13:548:3721:20
8:48
#18070
30K
18.64 mi13:58:242:41:278:4027:33
8:52
#17720
20M
20.00 mi14:10:232:53:268:4011:59
8:49
#17551
21M
21.00 mi14:21:223:04:258:4710:59
10:59
#17875
35K
21.75 mi14:27:403:10:438:466:18
8:25
#17743
23M
23.00 mi14:38:503:21:538:4711:10
8:55
#17629
24M
24.00 mi14:47:433:30:468:478:53
8:53
#17594
40K
24.85 mi14:55:443:38:478:488:01
9:23
#17634
25.2M
25.20 mi14:59:183:42:218:493:34
10:21
#17665
Finish
26.22 mi15:07:483:50:518:498:30
8:20
#17535
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi18012114251142517742(Top 67%)11360(Top 75%)11360(Top 215%)
10K6.21 mi3.10 mi18540-52811668-24311668-24319082(Top 72%)11929(Top 79%)11929(Top 226%)
15K9.32 mi3.11 mi18273+26711576+9211576+9217742(Top 67%)11360(Top 75%)11360(Top 215%)
20K12.43 mi3.11 mi18142+13111524+5211524+5217845(Top 67%)11402(Top 75%)11402(Top 216%)
Half13.11 mi0.68 mi18121+2111520+411520+417816(Top 67%)11422(Top 75%)11422(Top 216%)
25K15.53 mi2.42 mi18070+5111476+4411476+4417926(Top 67%)11382(Top 75%)11382(Top 215%)
30K18.64 mi3.11 mi17720+35011312+16411312+16416463(Top 62%)10679(Top 70%)10679(Top 202%)
20M20.00 mi1.36 mi17551+16911223+8911223+8915523(Top 58%)10222(Top 67%)10222(Top 193%)
21M21.00 mi1.00 mi17875-32411337-11411337-11420785(Top 78%)12414(Top 82%)12414(Top 235%)
35K21.75 mi0.75 mi17743+13211270+6711270+6714843(Top 56%)9823(Top 65%)9823(Top 186%)
23M23.00 mi1.25 mi17629+11411210+6011210+6015621(Top 59%)10079(Top 66%)10079(Top 191%)
24M24.00 mi1.00 mi17594+3511181+2911181+2916674(Top 63%)10479(Top 69%)10479(Top 198%)
40K24.85 mi0.85 mi17634-4011191-1011191-1017835(Top 67%)10957(Top 72%)10957(Top 207%)
25.2M25.20 mi0.35 mi17665-3111204-1311204-1318570(Top 70%)11279(Top 74%)11279(Top 213%)
Finish26.22 mi1.02 mi17535+13011134+7011134+7014341(Top 54%)9413(Top 62%)9413(Top 178%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

17742

Males

11360

M18-39

11360

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19082

Males

11929

M18-39

11929

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

17742

Males

11360

M18-39

11360

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17845

Males

11402

M18-39

11402

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

17816

Males

11422

M18-39

11422

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17926

Males

11382

M18-39

11382

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

16463

Males

10679

M18-39

10679

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15523

Males

10222

M18-39

10222

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20785

Males

12414

M18-39

12414

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

14843

Males

9823

M18-39

9823

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

15621

Males

10079

M18-39

10079

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16674

Males

10479

M18-39

10479

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17835

Males

10957

M18-39

10957

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18570

Males

11279

M18-39

11279

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14341

Males

9413

M18-39

9413

Passing Analysis

Category:
Athletes Passed
2045
Passed By
1568
Net Change
+477
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18012
5K → 10K139667-528#18012#18540
10K → 15K34073+267#18540#18273
15K → 20K22695+131#18273#18142
20K → Half3918+21#18142#18121
Half → 25K154103+51#18121#18070
25K → 30K39040+350#18070#17720
30K → 20M18213+169#17720#17551
20M → 21M15339-324#17551#17875
21M → 35K1397+132#17875#17743
35K → 23M14329+114#17743#17629
23M → 24M7742+35#17629#17594
24M → 40K4484-40#17594#17634
40K → 25.2M1748-31#17634#17665
25.2M → Finish14010+130#17665#17535
TOTALS20451568+477
📊

Passing Visuals

Category:
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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