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BOSTON MARATHON 2023

Sean Macdonald

Bib: 352•M

MA

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0:00
/ mi
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Overall
#0 / 26622
Top 0.5%
Gender (Male)
#0 / 15176
Top 0.8%
Age Group (M18-39)
#0 / 5285
Top 2%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
17:31
Rank: #209
Start → 5K
17:31 | 5:38/mi
10K· 6.21 mi
34:57
Rank: #212 (-3)
5K → 10K
17:26 | 5:37/mi
15K· 9.32 mi
52:31
Rank: #209 (+3)
10K → 15K
17:34 | 5:39/mi
20K· 12.43 mi
1:10:01
Rank: #189 (+20)
15K → 20K
17:30 | 5:38/mi
Half· 13.11 mi
1:13:49
Rank: #188 (+1)
20K → Half
3:48 | 5:34/mi
25K· 15.53 mi
1:27:28
Rank: #169 (+19)
Half → 25K
13:39 | 5:38/mi
30K· 18.64 mi
1:45:27
Rank: #162 (+7)
25K → 30K
17:59 | 5:47/mi
20M
1:53:20
Rank: #161 (+1)
30K → 20M
7:53 | 5:48/mi
21M
1:59:23
Rank: #156 (+5)
20M → 21M
6:03 | 6:03/mi
35K· 21.75 mi
2:03:39
Rank: #157 (-1)
21M → 35K
4:16 | 5:42/mi
23M
2:11:01
Rank: #156 (+1)
35K → 23M
7:22 | 5:53/mi
24M
2:16:43
Rank: #148 (+8)
23M → 24M
5:42 | 5:42/mi
40K· 24.85 mi
2:21:41
Rank: #144 (+4)
24M → 40K
4:58 | 5:49/mi
25.2M
2:23:49
Rank: #143 (+1)
40K → 25.2M
2:08 | 6:11/mi
Finish· 26.22 mi
2:29:33
Rank: #137 (+6)
25.2M → Finish
5:44 | 5:38/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.11 mi
Time1:13:49
Pace5:38 /mi
2nd Half
Distance13.11 mi
Time1:15:44
Pace5:47 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:3517:315:3817:31
5:38
-
10K
6.21 mi10:35:0134:575:3717:26
5:37
-0:01
15K
9.32 mi10:52:3552:315:3817:34
5:39
+0:02
20K
12.43 mi11:10:051:10:015:3817:30
5:38
-0:01
Half
13.11 mi11:13:531:13:495:383:48
5:34
-0:04
25K
15.53 mi11:27:321:27:285:3813:39
5:38
+0:04
30K
18.64 mi11:45:311:45:275:3917:59
5:47
+0:09
20M
20.00 mi11:53:241:53:205:407:53
5:48
+0:01
21M
21.00 mi11:59:271:59:235:416:03
6:03
+0:15
35K
21.75 mi12:03:432:03:395:414:16
5:42
-0:21
23M
23.00 mi12:11:052:11:015:427:22
5:53
+0:11
24M
24.00 mi12:16:472:16:435:425:42
5:42
-0:11
40K
24.85 mi12:21:452:21:415:424:58
5:49
+0:07
25.2M
25.20 mi12:23:532:23:495:422:08
6:11
+0:22
Finish
26.22 mi12:29:372:29:335:425:44
5:38
-0:33

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

5:34 /mi

Average Pace

5:42 /mi

Slowest Pace

6:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:27:25

99% of race

Time at Steady Pace

2:08

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:42 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:17:3517:315:3817:31
5:38
#209
10K
6.21 mi10:35:0134:575:3717:26
5:37
#212
15K
9.32 mi10:52:3552:315:3817:34
5:39
#209
20K
12.43 mi11:10:051:10:015:3817:30
5:38
#189
Half
13.11 mi11:13:531:13:495:383:48
5:34
#188
25K
15.53 mi11:27:321:27:285:3813:39
5:38
#169
30K
18.64 mi11:45:311:45:275:3917:59
5:47
#162
20M
20.00 mi11:53:241:53:205:407:53
5:48
#161
21M
21.00 mi11:59:271:59:235:416:03
6:03
#156
35K
21.75 mi12:03:432:03:395:414:16
5:42
#157
23M
23.00 mi12:11:052:11:015:427:22
5:53
#156
24M
24.00 mi12:16:472:16:435:425:42
5:42
#148
40K
24.85 mi12:21:452:21:415:424:58
5:49
#144
25.2M
25.20 mi12:23:532:23:495:422:08
6:11
#143
Finish
26.22 mi12:29:372:29:335:425:44
5:38
#137
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi209209209188(Top 0.7%)161(Top 1%)161(Top 3%)
10K6.21 mi3.10 mi212-3186+23186+23204(Top 0.8%)177(Top 1%)177(Top 3%)
15K9.32 mi3.11 mi209+3182+4182+4188(Top 0.7%)161(Top 1%)161(Top 3%)
20K12.43 mi3.11 mi189+20164+18164+18155(Top 0.6%)133(Top 0.9%)133(Top 3%)
Half13.11 mi0.68 mi188+1164164167(Top 0.6%)146(Top 1.0%)146(Top 3%)
25K15.53 mi2.42 mi169+19145+19145+19134(Top 0.5%)114(Top 0.8%)114(Top 2%)
30K18.64 mi3.11 mi162+7141+4141+4154(Top 0.6%)133(Top 0.9%)133(Top 3%)
20M20.00 mi1.36 mi161+1140+1140+1157(Top 0.6%)135(Top 0.9%)135(Top 3%)
21M21.00 mi1.00 mi156+5134+6134+6132(Top 0.5%)113(Top 0.7%)113(Top 2%)
35K21.75 mi0.75 mi157-1135-1135-1220(Top 0.8%)197(Top 1%)197(Top 4%)
23M23.00 mi1.25 mi156+1134+1134+1190(Top 0.7%)167(Top 1%)167(Top 3%)
24M24.00 mi1.00 mi148+8127+7127+7166(Top 0.6%)144(Top 0.9%)144(Top 3%)
40K24.85 mi0.85 mi144+4124+3124+3152(Top 0.6%)137(Top 0.9%)137(Top 3%)
25.2M25.20 mi0.35 mi143+1123+1123+1151(Top 0.6%)134(Top 0.9%)134(Top 3%)
Finish26.22 mi1.02 mi137+6117+6117+6167(Top 0.6%)151(Top 1.0%)151(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.7%
×21stories
+97ft-345ft

Overall

188

Males

161

M18-39

161

5K→10K

3.1 - 6.2 mi

Top 0.8%
×5stories
+79ft-138ft

Overall

204

Males

177

M18-39

177

10K→15K

6.2 - 9.3 mi

Top 0.7%
×3stories
+67ft-78ft

Overall

188

Males

161

M18-39

161

15K→20K

9.3 - 12.4 mi

Top 0.6%
×5stories
+106ft-86ft

Overall

155

Males

133

M18-39

133

20K→Half

12.4 - 13.1 mi

Top 0.6%
×2stories
+19ft-37ft

Overall

167

Males

146

M18-39

146

Half→25K

13.1 - 15.5 mi

Top 0.5%
×4stories
+66ft-88ft

Overall

134

Males

114

M18-39

114

25K→30K

15.5 - 18.6 mi

Top 0.6%
×9stories
+181ft-148ft

Overall

154

Males

133

M18-39

133

30K→20M

18.6 - 20.0 mi

Top 0.6%
×5stories
+64ft-50ft

Overall

157

Males

135

M18-39

135

20M→21M

20.0 - 21.0 mi

Top 0.5%
×8stories
+106ft-24ft

Overall

132

Males

113

M18-39

113

21M→35K

21.0 - 21.8 mi

Top 0.8%
×7stories
+17ft-86ft

Overall

220

Males

197

M18-39

197

35K→23M

21.8 - 23.0 mi

Top 0.7%
×5stories
+23ft-63ft

Overall

190

Males

167

M18-39

167

23M→24M

23.0 - 24.0 mi

Top 0.6%
×6stories
+12ft-82ft

Overall

166

Males

144

M18-39

144

24M→40K

24.0 - 24.9 mi

Top 0.6%
×1story
+6ft-20ft

Overall

152

Males

137

M18-39

137

40K→25.2M

24.9 - 25.2 mi

Top 0.6%
×1story
+13ft-16ft

Overall

151

Males

134

M18-39

134

25.2M→Finish

25.2 - 26.2 mi

Top 0.6%
×2stories
+22ft-21ft

Overall

167

Males

151

M18-39

151

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
120
Passed By
48
Net Change
+72
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#209
5K → 10K2831-3#209#212
10K → 15K63+3#212#209
15K → 20K233+20#209#189
20K → Half10+1#189#188
Half → 25K190+19#188#169
25K → 30K92+7#169#162
30K → 20M32+1#162#161
20M → 21M61+5#161#156
21M → 35K12-1#156#157
35K → 23M10+1#157#156
23M → 24M91+8#156#148
24M → 40K40+4#148#144
40K → 25.2M21+1#144#143
25.2M → Finish82+6#143#137
TOTALS12048+72
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing