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BOSTON MARATHON 2024

Sam Welch

Bib: 550•M

TX

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 0.6%
Gender (Male)
#0 / 14578
Top 1.0%
Division (M18-39)
#0 / 4849
Top 3%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:22
Rank: #228
Start → 5K
17:22 | 5:35/mi
10K· 6.21 mi
34:55
Rank: #237 (-9)
5K → 10K
17:33 | 5:39/mi
15K· 9.32 mi
52:35
Rank: #227 (+10)
10K → 15K
17:40 | 5:41/mi
20K· 12.43 mi
1:10:21
Rank: #211 (+16)
15K → 20K
17:46 | 5:43/mi
Half· 13.11 mi
1:14:08
Rank: #206 (+5)
20K → Half
3:47 | 5:33/mi
25K· 15.53 mi
1:28:00
Rank: #190 (+16)
Half → 25K
13:52 | 5:43/mi
30K· 18.64 mi
1:46:17
Rank: #170 (+20)
25K → 30K
18:17 | 5:53/mi
20M
1:54:17
Rank: #165 (+5)
30K → 20M
8:00 | 5:53/mi
21M
2:00:25
Rank: #154 (+11)
20M → 21M
6:08 | 6:08/mi
35K· 21.75 mi
2:04:37
Rank: #147 (+7)
21M → 35K
4:12 | 5:37/mi
23M
2:11:59
Rank: #145 (+2)
35K → 23M
7:22 | 5:53/mi
24M
2:17:54
Rank: #142 (+3)
23M → 24M
5:55 | 5:55/mi
40K· 24.85 mi
2:23:11
Rank: #142
24M → 40K
5:17 | 6:11/mi
25.2M
2:25:37
Rank: #146 (-4)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:32:05
Rank: #160 (-14)
25.2M → Finish
6:28 | 6:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:14:08
Pace5:39 /mi
2nd Half
Distance13.11 mi
Time1:17:57
Pace5:57 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:2817:225:3517:22
5:35
-
10K
6.21 mi10:35:0134:555:3717:33
5:39
+0:04
15K
9.32 mi10:52:4152:355:3817:40
5:41
+0:02
20K
12.43 mi11:10:271:10:215:4017:46
5:43
+0:02
Half
13.11 mi11:14:141:14:085:393:47
5:33
-0:10
25K
15.53 mi11:28:061:28:005:4013:52
5:43
+0:10
30K
18.64 mi11:46:231:46:175:4218:17
5:53
+0:10
20M
20.00 mi11:54:231:54:175:438:00
5:53
0:00
21M
21.00 mi12:00:312:00:255:446:08
6:08
+0:15
35K
21.75 mi12:04:432:04:375:444:12
5:37
-0:31
23M
23.00 mi12:12:052:11:595:447:22
5:53
+0:16
24M
24.00 mi12:18:002:17:545:455:55
5:55
+0:02
40K
24.85 mi12:23:172:23:115:465:17
6:11
+0:16
25.2M
25.20 mi12:25:432:25:375:472:26
7:03
+0:52
Finish
26.22 mi12:32:112:32:055:486:28
6:21
-0:42

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

5:33 /mi

Average Pace

5:48 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:00:34

40% of race

Time at Steady Pace

1:11:12

47% of race

Time at Slower Pace

20:19

13% of race

Average Pace: 5:48 /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 mi10:17:2817:225:3517:22
5:35
#228
10K
6.21 mi10:35:0134:555:3717:33
5:39
#237
15K
9.32 mi10:52:4152:355:3817:40
5:41
#227
20K
12.43 mi11:10:271:10:215:4017:46
5:43
#211
Half
13.11 mi11:14:141:14:085:393:47
5:33
#206
25K
15.53 mi11:28:061:28:005:4013:52
5:43
#190
30K
18.64 mi11:46:231:46:175:4218:17
5:53
#170
20M
20.00 mi11:54:231:54:175:438:00
5:53
#165
21M
21.00 mi12:00:312:00:255:446:08
6:08
#154
35K
21.75 mi12:04:432:04:375:444:12
5:37
#147
23M
23.00 mi12:12:052:11:595:447:22
5:53
#145
24M
24.00 mi12:18:002:17:545:455:55
5:55
#142
40K
24.85 mi12:23:172:23:115:465:17
6:11
#142
25.2M
25.20 mi12:25:432:25:375:472:26
7:03
#146
Finish
26.22 mi12:32:112:32:055:486:28
6:21
#160
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi228208208248(Top 1.0%)227(Top 2%)227(Top 5%)
10K6.21 mi3.10 mi237-9217-9217-9247(Top 1.0%)226(Top 2%)226(Top 5%)
15K9.32 mi3.11 mi227+10206+11206+11248(Top 1.0%)227(Top 2%)227(Top 5%)
20K12.43 mi3.11 mi211+16190+16190+16199(Top 0.8%)180(Top 1%)180(Top 4%)
Half13.11 mi0.68 mi206+5185+5185+5121(Top 0.5%)120(Top 0.8%)120(Top 2%)
25K15.53 mi2.42 mi190+16169+16169+16169(Top 0.7%)150(Top 1%)150(Top 3%)
30K18.64 mi3.11 mi170+20149+20149+20166(Top 0.6%)147(Top 1%)147(Top 3%)
20M20.00 mi1.36 mi165+5144+5144+5138(Top 0.5%)119(Top 0.8%)119(Top 2%)
21M21.00 mi1.00 mi154+11135+9135+9112(Top 0.4%)97(Top 0.7%)97(Top 2%)
35K21.75 mi0.75 mi147+7128+7128+7104(Top 0.4%)89(Top 0.6%)89(Top 2%)
23M23.00 mi1.25 mi145+2126+2126+2122(Top 0.5%)106(Top 0.7%)106(Top 2%)
24M24.00 mi1.00 mi142+3123+3123+3215(Top 0.8%)193(Top 1%)193(Top 4%)
40K24.85 mi0.85 mi142123123307(Top 1%)282(Top 2%)282(Top 6%)
25.2M25.20 mi0.35 mi146-4127-4127-4619(Top 2%)567(Top 4%)567(Top 12%)
Finish26.22 mi1.02 mi160-14140-13140-13991(Top 4%)912(Top 6%)912(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1.0%
×21stories
+97ft-345ft

Overall

248

Males

227

M18-39

227

5K→10K

3.1 - 6.2 mi

Top 1.0%
×5stories
+79ft-138ft

Overall

247

Males

226

M18-39

226

10K→15K

6.2 - 9.3 mi

Top 1.0%
×3stories
+67ft-78ft

Overall

248

Males

227

M18-39

227

15K→20K

9.3 - 12.4 mi

Top 0.8%
×5stories
+106ft-86ft

Overall

199

Males

180

M18-39

180

20K→Half

12.4 - 13.1 mi

Top 0.5%
×2stories
+19ft-37ft

Overall

121

Males

120

M18-39

120

Half→25K

13.1 - 15.5 mi

Top 0.7%
×4stories
+66ft-88ft

Overall

169

Males

150

M18-39

150

25K→30K

15.5 - 18.6 mi

Top 0.6%
×9stories
+181ft-148ft

Overall

166

Males

147

M18-39

147

30K→20M

18.6 - 20.0 mi

Top 0.5%
×5stories
+64ft-50ft

Overall

138

Males

119

M18-39

119

20M→21M

20.0 - 21.0 mi

Top 0.4%
×8stories
+106ft-24ft

Overall

112

Males

97

M18-39

97

21M→35K

21.0 - 21.8 mi

Top 0.4%
×7stories
+17ft-86ft

Overall

104

Males

89

M18-39

89

35K→23M

21.8 - 23.0 mi

Top 0.5%
×5stories
+23ft-63ft

Overall

122

Males

106

M18-39

106

23M→24M

23.0 - 24.0 mi

Top 0.8%
×6stories
+12ft-82ft

Overall

215

Males

193

M18-39

193

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

307

Males

282

M18-39

282

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

619

Males

567

M18-39

567

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

991

Males

912

M18-39

912

Passing Analysis

Category:
Athletes Passed
135
Passed By
67
Net Change
+68
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#228
5K → 10K1120-9#228#237
10K → 15K177+10#237#227
15K → 20K193+16#227#211
20K → Half50+5#211#206
Half → 25K215+16#206#190
25K → 30K255+20#190#170
30K → 20M83+5#170#165
20M → 21M132+11#165#154
21M → 35K70+7#154#147
35K → 23M42+2#147#145
23M → 24M30+3#145#142
24M → 40K220#142#142
40K → 25.2M04-4#142#146
25.2M → Finish014-14#146#160
TOTALS13567+68
📊

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