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BOSTON MARATHON 2023

Colin Smith

Bib: 3889•M

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 20%
Division (M18-39)
#0 / 5285
Top 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:15
Rank: #5036
Start → 5K
21:15 | 6:50/mi
10K· 6.21 mi
41:49
Rank: #4269 (+767)
5K → 10K
20:34 | 6:37/mi
15K· 9.32 mi
1:02:21
Rank: #3906 (+363)
10K → 15K
20:32 | 6:37/mi
20K· 12.43 mi
1:22:55
Rank: #3616 (+290)
15K → 20K
20:34 | 6:37/mi
Half· 13.11 mi
1:27:24
Rank: #3588 (+28)
20K → Half
4:29 | 6:34/mi
25K· 15.53 mi
1:43:32
Rank: #3469 (+119)
Half → 25K
16:08 | 6:39/mi
30K· 18.64 mi
2:04:41
Rank: #3351 (+118)
25K → 30K
21:09 | 6:48/mi
20M
2:13:52
Rank: #3238 (+113)
30K → 20M
9:11 | 6:45/mi
21M
2:20:58
Rank: #3179 (+59)
20M → 21M
7:06 | 7:06/mi
35K· 21.75 mi
2:25:54
Rank: #3146 (+33)
21M → 35K
4:56 | 6:36/mi
23M
2:34:39
Rank: #3154 (-8)
35K → 23M
8:45 | 6:59/mi
24M
2:41:22
Rank: #3140 (+14)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:47:24
Rank: #3162 (-22)
24M → 40K
6:02 | 7:03/mi
25.2M
2:50:05
Rank: #3195 (-33)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
2:57:12
Rank: #3245 (-50)
25.2M → Finish
7:07 | 6:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:24
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:29:48
Pace6:51 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4821:156:5021:15
6:50
-
10K
6.21 mi10:43:2241:496:4420:34
6:37
-0:13
15K
9.32 mi11:03:541:02:216:4120:32
6:37
0:00
20K
12.43 mi11:24:281:22:556:4020:34
6:37
0:00
Half
13.11 mi11:28:571:27:246:404:29
6:34
-0:03
25K
15.53 mi11:45:051:43:326:4016:08
6:39
+0:05
30K
18.64 mi12:06:142:04:416:4121:09
6:48
+0:09
20M
20.00 mi12:15:252:13:526:429:11
6:45
-0:03
21M
21.00 mi12:22:312:20:586:437:06
7:06
+0:21
35K
21.75 mi12:27:272:25:546:434:56
6:36
-0:30
23M
23.00 mi12:36:122:34:396:438:45
6:59
+0:23
24M
24.00 mi12:42:552:41:226:436:43
6:43
-0:16
40K
24.85 mi12:48:572:47:246:446:02
7:03
+0:20
25.2M
25.20 mi12:51:382:50:056:452:41
7:47
+0:44
Finish
26.22 mi12:58:452:57:126:467:07
6:59
-0:48

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

6:34 /mi

Average Pace

6:46 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:31

98% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

2:41

2% of race

Average Pace: 6:45 /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 mi10:22:4821:156:5021:15
6:50
#5036
10K
6.21 mi10:43:2241:496:4420:34
6:37
#4269
15K
9.32 mi11:03:541:02:216:4120:32
6:37
#3906
20K
12.43 mi11:24:281:22:556:4020:34
6:37
#3616
Half
13.11 mi11:28:571:27:246:404:29
6:34
#3588
25K
15.53 mi11:45:051:43:326:4016:08
6:39
#3469
30K
18.64 mi12:06:142:04:416:4121:09
6:48
#3351
20M
20.00 mi12:15:252:13:526:429:11
6:45
#3238
21M
21.00 mi12:22:312:20:586:437:06
7:06
#3179
35K
21.75 mi12:27:272:25:546:434:56
6:36
#3146
23M
23.00 mi12:36:122:34:396:438:45
6:59
#3154
24M
24.00 mi12:42:552:41:226:436:43
6:43
#3140
40K
24.85 mi12:48:572:47:246:446:02
7:03
#3162
25.2M
25.20 mi12:51:382:50:056:452:41
7:47
#3195
Finish
26.22 mi12:58:452:57:126:467:07
6:59
#3245
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5036467146713356(Top 13%)3185(Top 21%)3185(Top 60%)
10K6.21 mi3.10 mi4269+7674001+6704001+6703634(Top 14%)3431(Top 23%)3431(Top 65%)
15K9.32 mi3.11 mi3906+3633679+3223679+3223356(Top 13%)3185(Top 21%)3185(Top 60%)
20K12.43 mi3.11 mi3616+2903422+2573422+2572983(Top 11%)2841(Top 19%)2841(Top 54%)
Half13.11 mi0.68 mi3588+283396+263396+263229(Top 12%)3079(Top 20%)3079(Top 58%)
25K15.53 mi2.42 mi3469+1193293+1033293+1033030(Top 11%)2888(Top 19%)2888(Top 55%)
30K18.64 mi3.11 mi3351+1183178+1153178+1153032(Top 11%)2865(Top 19%)2865(Top 54%)
20M20.00 mi1.36 mi3238+1133075+1033075+1032585(Top 10%)2452(Top 16%)2452(Top 46%)
21M21.00 mi1.00 mi3179+593016+593016+592636(Top 10%)2482(Top 16%)2482(Top 47%)
35K21.75 mi0.75 mi3146+332984+322984+322975(Top 11%)2786(Top 18%)2786(Top 53%)
23M23.00 mi1.25 mi3154-82992-82992-83706(Top 14%)3420(Top 23%)3420(Top 65%)
24M24.00 mi1.00 mi3140+142978+142978+143193(Top 12%)2959(Top 19%)2959(Top 56%)
40K24.85 mi0.85 mi3162-222994-162994-164112(Top 15%)3673(Top 24%)3673(Top 69%)
25.2M25.20 mi0.35 mi3195-333024-303024-305202(Top 20%)4382(Top 29%)4382(Top 83%)
Finish26.22 mi1.02 mi3245-503069-453069-455080(Top 19%)4315(Top 28%)4315(Top 82%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3356

Males

3185

M18-39

3185

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3634

Males

3431

M18-39

3431

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3356

Males

3185

M18-39

3185

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

2983

Males

2841

M18-39

2841

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3229

Males

3079

M18-39

3079

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3030

Males

2888

M18-39

2888

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3032

Males

2865

M18-39

2865

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2585

Males

2452

M18-39

2452

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2636

Males

2482

M18-39

2482

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

2975

Males

2786

M18-39

2786

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3706

Males

3420

M18-39

3420

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3193

Males

2959

M18-39

2959

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4112

Males

3673

M18-39

3673

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5202

Males

4382

M18-39

4382

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5080

Males

4315

M18-39

4315

Passing Analysis

Category:
Athletes Passed
2219
Passed By
428
Net Change
+1791
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5036
5K → 10K78619+767#5036#4269
10K → 15K38017+363#4269#3906
15K → 20K2999+290#3906#3616
20K → Half3810+28#3616#3588
Half → 25K13920+119#3588#3469
25K → 30K15234+118#3469#3351
30K → 20M12613+113#3351#3238
20M → 21M7516+59#3238#3179
21M → 35K4310+33#3179#3146
35K → 23M5260-8#3146#3154
23M → 24M5036+14#3154#3140
24M → 40K3254-22#3140#3162
40K → 25.2M1447-33#3162#3195
25.2M → Finish3383-50#3195#3245
TOTALS2219428+1791
📊

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