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BOSTON MARATHON 2023

Colin Smith

Bib: 2583•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Division (M18-39)
#0 / 5285
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:49
Rank: #1718
Start → 5K
19:49 | 6:23/mi
10K· 6.21 mi
39:06
Rank: #1530 (+188)
5K → 10K
19:17 | 6:12/mi
15K· 9.32 mi
58:45
Rank: #1594 (-64)
10K → 15K
19:39 | 6:19/mi
20K· 12.43 mi
1:18:22
Rank: #1552 (+42)
15K → 20K
19:37 | 6:19/mi
Half· 13.11 mi
1:22:37
Rank: #1548 (+4)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:37:44
Rank: #1436 (+112)
Half → 25K
15:07 | 6:14/mi
30K· 18.64 mi
1:57:28
Rank: #1343 (+93)
25K → 30K
19:44 | 6:21/mi
20M
2:06:09
Rank: #1321 (+22)
30K → 20M
8:41 | 6:23/mi
21M
2:12:52
Rank: #1296 (+25)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:17:26
Rank: #1262 (+34)
21M → 35K
4:34 | 6:06/mi
23M
2:25:27
Rank: #1225 (+37)
35K → 23M
8:01 | 6:24/mi
24M
2:31:38
Rank: #1195 (+30)
23M → 24M
6:11 | 6:11/mi
40K· 24.85 mi
2:37:01
Rank: #1171 (+24)
24M → 40K
5:23 | 6:18/mi
25.2M
2:39:22
Rank: #1167 (+4)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:45:40
Rank: #1162 (+5)
25.2M → Finish
6:18 | 6:11/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:22:37
Pace6:18 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:23:03
Pace6:20 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:2719:496:2319:49
6:23
-
10K
6.21 mi10:39:4439:066:1819:17
6:12
-0:11
15K
9.32 mi10:59:2358:456:1819:39
6:19
+0:07
20K
12.43 mi11:19:001:18:226:1819:37
6:19
0:00
Half
13.11 mi11:23:151:22:376:184:15
6:14
-0:05
25K
15.53 mi11:38:221:37:446:1715:07
6:14
0:00
30K
18.64 mi11:58:061:57:286:1819:44
6:21
+0:07
20M
20.00 mi12:06:472:06:096:188:41
6:23
+0:02
21M
21.00 mi12:13:302:12:526:206:43
6:43
+0:20
35K
21.75 mi12:18:042:17:266:194:34
6:06
-0:37
23M
23.00 mi12:26:052:25:276:198:01
6:24
+0:18
24M
24.00 mi12:32:162:31:386:196:11
6:11
-0:13
40K
24.85 mi12:37:392:37:016:195:23
6:18
+0:07
25.2M
25.20 mi12:40:002:39:226:192:21
6:49
+0:31
Finish
26.22 mi12:46:182:45:406:196:18
6:11
-0:38

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

6:06 /mi

Average Pace

6:19 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:36

95% of race

Time at Steady Pace

9:04

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:19 /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 mi10:20:2719:496:2319:49
6:23
#1718
10K
6.21 mi10:39:4439:066:1819:17
6:12
#1530
15K
9.32 mi10:59:2358:456:1819:39
6:19
#1594
20K
12.43 mi11:19:001:18:226:1819:37
6:19
#1552
Half
13.11 mi11:23:151:22:376:184:15
6:14
#1548
25K
15.53 mi11:38:221:37:446:1715:07
6:14
#1436
30K
18.64 mi11:58:061:57:286:1819:44
6:21
#1343
20M
20.00 mi12:06:472:06:096:188:41
6:23
#1321
21M
21.00 mi12:13:302:12:526:206:43
6:43
#1296
35K
21.75 mi12:18:042:17:266:194:34
6:06
#1262
23M
23.00 mi12:26:052:25:276:198:01
6:24
#1225
24M
24.00 mi12:32:162:31:386:196:11
6:11
#1195
40K
24.85 mi12:37:392:37:016:195:23
6:18
#1171
25.2M
25.20 mi12:40:002:39:226:192:21
6:49
#1167
Finish
26.22 mi12:46:182:45:406:196:18
6:11
#1162
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1718163716371753(Top 7%)1679(Top 11%)1679(Top 32%)
10K6.21 mi3.10 mi1530+1881460+1771460+1771381(Top 5%)1316(Top 9%)1316(Top 25%)
15K9.32 mi3.11 mi1594-641523-631523-631753(Top 7%)1679(Top 11%)1679(Top 32%)
20K12.43 mi3.11 mi1552+421483+401483+401437(Top 5%)1372(Top 9%)1372(Top 26%)
Half13.11 mi0.68 mi1548+41479+41479+41465(Top 6%)1401(Top 9%)1401(Top 27%)
25K15.53 mi2.42 mi1436+1121373+1061373+1061093(Top 4%)1041(Top 7%)1041(Top 20%)
30K18.64 mi3.11 mi1343+931282+911282+911067(Top 4%)1016(Top 7%)1016(Top 19%)
20M20.00 mi1.36 mi1321+221262+201262+201100(Top 4%)1054(Top 7%)1054(Top 20%)
21M21.00 mi1.00 mi1296+251238+241238+241136(Top 4%)1082(Top 7%)1082(Top 20%)
35K21.75 mi0.75 mi1262+341205+331205+33947(Top 4%)899(Top 6%)899(Top 17%)
23M23.00 mi1.25 mi1225+371169+361169+361107(Top 4%)1047(Top 7%)1047(Top 20%)
24M24.00 mi1.00 mi1195+301140+291140+29973(Top 4%)922(Top 6%)922(Top 17%)
40K24.85 mi0.85 mi1171+241117+231117+23885(Top 3%)838(Top 6%)838(Top 16%)
25.2M25.20 mi0.35 mi1167+41113+41113+41183(Top 4%)1122(Top 7%)1122(Top 21%)
Finish26.22 mi1.02 mi1162+51107+61107+61213(Top 5%)1154(Top 8%)1154(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1753

Males

1679

M18-39

1679

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1381

Males

1316

M18-39

1316

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1753

Males

1679

M18-39

1679

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1437

Males

1372

M18-39

1372

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1465

Males

1401

M18-39

1401

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1093

Males

1041

M18-39

1041

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1067

Males

1016

M18-39

1016

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1100

Males

1054

M18-39

1054

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1136

Males

1082

M18-39

1082

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

947

Males

899

M18-39

899

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1107

Males

1047

M18-39

1047

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

973

Males

922

M18-39

922

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

885

Males

838

M18-39

838

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1183

Males

1122

M18-39

1122

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1213

Males

1154

M18-39

1154

Passing Analysis

Category:
Athletes Passed
770
Passed By
214
Net Change
+556
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1718
5K → 10K21123+188#1718#1530
10K → 15K3195-64#1530#1594
15K → 20K6523+42#1594#1552
20K → Half106+4#1552#1548
Half → 25K1164+112#1548#1436
25K → 30K1007+93#1436#1343
30K → 20M308+22#1343#1321
20M → 21M3813+25#1321#1296
21M → 35K362+34#1296#1262
35K → 23M414+37#1262#1225
23M → 24M344+30#1225#1195
24M → 40K284+24#1195#1171
40K → 25.2M84+4#1171#1167
25.2M → Finish2217+5#1167#1162
TOTALS770214+556
📊

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