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BOSTON MARATHON 2024

Lachlan Arthur

Bib: 1856•M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 4%
Gender (Male)
#0 / 14578
Top 7%
Division (M18-39)
#0 / 4849
Top 16%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:54
Rank: #1194
Start → 5K
18:54 | 6:05/mi
10K· 6.21 mi
37:54
Rank: #1191 (+3)
5K → 10K
19:00 | 6:07/mi
15K· 9.32 mi
57:01
Rank: #1165 (+26)
10K → 15K
19:07 | 6:09/mi
20K· 12.43 mi
1:16:18
Rank: #1135 (+30)
15K → 20K
19:17 | 6:12/mi
Half· 13.11 mi
1:20:32
Rank: #1141 (-6)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:35:46
Rank: #1097 (+44)
Half → 25K
15:14 | 6:17/mi
30K· 18.64 mi
1:55:50
Rank: #1017 (+80)
25K → 30K
20:04 | 6:28/mi
20M
2:04:48
Rank: #978 (+39)
30K → 20M
8:58 | 6:36/mi
21M
2:11:44
Rank: #956 (+22)
20M → 21M
6:56 | 6:56/mi
35K· 21.75 mi
2:16:32
Rank: #942 (+14)
21M → 35K
4:48 | 6:25/mi
23M
2:25:03
Rank: #948 (-6)
35K → 23M
8:31 | 6:48/mi
24M
2:31:47
Rank: #953 (-5)
23M → 24M
6:44 | 6:44/mi
40K· 24.85 mi
2:37:48
Rank: #963 (-10)
24M → 40K
6:01 | 7:02/mi
25.2M
2:40:28
Rank: #968 (-5)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
2:47:45
Rank: #1024 (-56)
25.2M → Finish
7:17 | 7:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:32
Pace6:09 /mi
2nd Half
Distance13.11 mi
Time1:27:13
Pace6:39 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:2518:546:0518:54
6:05
-
10K
6.21 mi10:38:2537:546:0619:00
6:07
+0:02
15K
9.32 mi10:57:3257:016:0719:07
6:09
+0:02
20K
12.43 mi11:16:491:16:186:0819:17
6:12
+0:03
Half
13.11 mi11:21:031:20:326:094:14
6:12
0:00
25K
15.53 mi11:36:171:35:466:1015:14
6:17
+0:05
30K
18.64 mi11:56:211:55:506:1320:04
6:28
+0:11
20M
20.00 mi12:05:192:04:486:148:58
6:36
+0:08
21M
21.00 mi12:12:152:11:446:166:56
6:56
+0:20
35K
21.75 mi12:17:032:16:326:174:48
6:25
-0:31
23M
23.00 mi12:25:342:25:036:188:31
6:48
+0:23
24M
24.00 mi12:32:182:31:476:196:44
6:44
-0:04
40K
24.85 mi12:38:192:37:486:216:01
7:02
+0:18
25.2M
25.20 mi12:40:592:40:286:222:40
7:44
+0:42
Finish
26.22 mi12:48:162:47:456:247:17
7:09
-0:35

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

6:05 /mi

Average Pace

6:24 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:32

48% of race

Time at Steady Pace

49:04

29% of race

Time at Slower Pace

38:09

23% of race

Average Pace: 6:24 /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 mi10:19:2518:546:0518:54
6:05
#1194
10K
6.21 mi10:38:2537:546:0619:00
6:07
#1191
15K
9.32 mi10:57:3257:016:0719:07
6:09
#1165
20K
12.43 mi11:16:491:16:186:0819:17
6:12
#1135
Half
13.11 mi11:21:031:20:326:094:14
6:12
#1141
25K
15.53 mi11:36:171:35:466:1015:14
6:17
#1097
30K
18.64 mi11:56:211:55:506:1320:04
6:28
#1017
20M
20.00 mi12:05:192:04:486:148:58
6:36
#978
21M
21.00 mi12:12:152:11:446:166:56
6:56
#956
35K
21.75 mi12:17:032:16:326:174:48
6:25
#942
23M
23.00 mi12:25:342:25:036:188:31
6:48
#948
24M
24.00 mi12:32:182:31:476:196:44
6:44
#953
40K
24.85 mi12:38:192:37:486:216:01
7:02
#963
25.2M
25.20 mi12:40:592:40:286:222:40
7:44
#968
Finish
26.22 mi12:48:162:47:456:247:17
7:09
#1024
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1194115511551218(Top 5%)1181(Top 8%)1181(Top 24%)
10K6.21 mi3.10 mi1191+31151+41151+41201(Top 5%)1162(Top 8%)1162(Top 24%)
15K9.32 mi3.11 mi1165+261126+251126+251218(Top 5%)1181(Top 8%)1181(Top 24%)
20K12.43 mi3.11 mi1135+301096+301096+301090(Top 4%)1053(Top 7%)1053(Top 22%)
Half13.11 mi0.68 mi1141-61103-71103-71321(Top 5%)1278(Top 9%)1278(Top 26%)
25K15.53 mi2.42 mi1097+441060+431060+431075(Top 4%)1037(Top 7%)1037(Top 21%)
30K18.64 mi3.11 mi1017+80982+78982+78955(Top 4%)912(Top 6%)912(Top 19%)
20M20.00 mi1.36 mi978+39941+41941+411066(Top 4%)1013(Top 7%)1013(Top 21%)
21M21.00 mi1.00 mi956+22919+22919+22937(Top 4%)888(Top 6%)888(Top 18%)
35K21.75 mi0.75 mi942+14905+14905+141048(Top 4%)989(Top 7%)989(Top 20%)
23M23.00 mi1.25 mi948-6908-3908-31292(Top 5%)1217(Top 8%)1217(Top 25%)
24M24.00 mi1.00 mi953-5911-3911-31451(Top 6%)1344(Top 9%)1344(Top 28%)
40K24.85 mi0.85 mi963-10921-10921-101930(Top 8%)1730(Top 12%)1730(Top 36%)
25.2M25.20 mi0.35 mi968-5924-3924-31948(Top 8%)1716(Top 12%)1716(Top 35%)
Finish26.22 mi1.02 mi1024-56978-54978-543755(Top 15%)3033(Top 21%)3033(Top 63%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1218

Males

1181

M18-39

1181

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1201

Males

1162

M18-39

1162

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1218

Males

1181

M18-39

1181

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1090

Males

1053

M18-39

1053

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1321

Males

1278

M18-39

1278

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1075

Males

1037

M18-39

1037

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

955

Males

912

M18-39

912

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1066

Males

1013

M18-39

1013

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

937

Males

888

M18-39

888

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1048

Males

989

M18-39

989

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1292

Males

1217

M18-39

1217

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1451

Males

1344

M18-39

1344

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

1930

Males

1730

M18-39

1730

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

1948

Males

1716

M18-39

1716

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

3755

Males

3033

M18-39

3033

Passing Analysis

Category:
Athletes Passed
557
Passed By
387
Net Change
+170
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1194
5K → 10K6057+3#1194#1191
10K → 15K6640+26#1191#1165
15K → 20K6030+30#1165#1135
20K → Half915-6#1135#1141
Half → 25K6622+44#1141#1097
25K → 30K10424+80#1097#1017
30K → 20M5112+39#1017#978
20M → 21M3816+22#978#956
21M → 35K217+14#956#942
35K → 23M2430-6#942#948
23M → 24M1924-5#948#953
24M → 40K1626-10#953#963
40K → 25.2M1217-5#963#968
25.2M → Finish1167-56#968#1024
TOTALS557387+170
📊

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