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BOSTON MARATHON 2023

Sam Lang

Bib: 8341•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 23%
Gender (Male)
#0 / 15176
Top 35%
Masters (Masters Men)
#0 / 9891
Top 21%
Division (M45-49)
#0 / 2252
Top 27%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:19
Rank: #2504
Start → 5K
20:19 | 6:32/mi
10K· 6.21 mi
41:40
Rank: #4049 (-1545)
5K → 10K
21:21 | 6:52/mi
15K· 9.32 mi
1:03:14
Rank: #4846 (-797)
10K → 15K
21:34 | 6:56/mi
20K· 12.43 mi
1:24:51
Rank: #5108 (-262)
15K → 20K
21:37 | 6:57/mi
Half· 13.11 mi
1:29:31
Rank: #5146 (-38)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:46:19
Rank: #5136 (+10)
Half → 25K
16:48 | 6:56/mi
30K· 18.64 mi
2:08:34
Rank: #5155 (-19)
25K → 30K
22:15 | 7:10/mi
20M
2:18:19
Rank: #5115 (+40)
30K → 20M
9:45 | 7:10/mi
21M
2:26:16
Rank: #5187 (-72)
20M → 21M
7:57 | 7:57/mi
35K· 21.75 mi
2:31:30
Rank: #5169 (+18)
21M → 35K
5:14 | 7:00/mi
23M
2:41:19
Rank: #5309 (-140)
35K → 23M
9:49 | 7:50/mi
24M
2:49:04
Rank: #5415 (-106)
23M → 24M
7:45 | 7:45/mi
40K· 24.85 mi
2:56:03
Rank: #5550 (-135)
24M → 40K
6:59 | 8:10/mi
25.2M
2:59:33
Rank: #5707 (-157)
40K → 25.2M
3:30 | 10:09/mi
Finish· 26.22 mi
3:08:13
Rank: #5992 (-285)
25.2M → Finish
8:40 | 8:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:31
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:38:42
Pace7:32 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:3520:196:3220:19
6:32
-
10K
6.21 mi11:06:5641:406:4221:21
6:52
+0:20
15K
9.32 mi11:28:301:03:146:4721:34
6:56
+0:04
20K
12.43 mi11:50:071:24:516:5021:37
6:57
+0:01
Half
13.11 mi11:54:471:29:316:504:40
6:50
-0:07
25K
15.53 mi12:11:351:46:196:5116:48
6:56
+0:06
30K
18.64 mi12:33:502:08:346:5422:15
7:10
+0:14
20M
20.00 mi12:43:352:18:196:559:45
7:10
0:00
21M
21.00 mi12:51:322:26:166:587:57
7:57
+0:47
35K
21.75 mi12:56:462:31:306:585:14
7:00
-0:57
23M
23.00 mi13:06:352:41:197:019:49
7:50
+0:50
24M
24.00 mi13:14:202:49:047:037:45
7:45
-0:05
40K
24.85 mi13:21:192:56:037:056:59
8:10
+0:25
25.2M
25.20 mi13:24:492:59:337:083:30
10:09
+1:59
Finish
26.22 mi13:33:293:08:137:118:40
8:30
-1:39

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

6:32 /mi

Average Pace

7:11 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

20:19

11% of race

Time at Steady Pace

2:03:14

65% of race

Time at Slower Pace

44:40

24% of race

Average Pace: 7:11 /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 mi10:45:3520:196:3220:19
6:32
#2504
10K
6.21 mi11:06:5641:406:4221:21
6:52
#4049
15K
9.32 mi11:28:301:03:146:4721:34
6:56
#4846
20K
12.43 mi11:50:071:24:516:5021:37
6:57
#5108
Half
13.11 mi11:54:471:29:316:504:40
6:50
#5146
25K
15.53 mi12:11:351:46:196:5116:48
6:56
#5136
30K
18.64 mi12:33:502:08:346:5422:15
7:10
#5155
20M
20.00 mi12:43:352:18:196:559:45
7:10
#5115
21M
21.00 mi12:51:322:26:166:587:57
7:57
#5187
35K
21.75 mi12:56:462:31:306:585:14
7:00
#5169
23M
23.00 mi13:06:352:41:197:019:49
7:50
#5309
24M
24.00 mi13:14:202:49:047:037:45
7:45
#5415
40K
24.85 mi13:21:192:56:037:056:59
8:10
#5550
25.2M
25.20 mi13:24:492:59:337:083:30
10:09
#5707
Finish
26.22 mi13:33:293:08:137:118:40
8:30
#5992
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi2504239023906208(Top 23%)5627(Top 37%)5627(Top 250%)
10K6.21 mi3.10 mi4049-15453806-14163806-14165928(Top 22%)5408(Top 36%)5408(Top 240%)
15K9.32 mi3.11 mi4846-7974509-7034509-7036208(Top 23%)5627(Top 37%)5627(Top 250%)
20K12.43 mi3.11 mi5108-2624740-2314740-2315705(Top 21%)5232(Top 34%)5232(Top 232%)
Half13.11 mi0.68 mi5146-384774-344774-345618(Top 21%)5178(Top 34%)5178(Top 230%)
25K15.53 mi2.42 mi5136+104764+104764+105149(Top 19%)4752(Top 31%)4752(Top 211%)
30K18.64 mi3.11 mi5155-194773-94773-95279(Top 20%)4822(Top 32%)4822(Top 214%)
20M20.00 mi1.36 mi5115+404738+354738+355000(Top 19%)4546(Top 30%)4546(Top 202%)
21M21.00 mi1.00 mi5187-724789-514789-517010(Top 26%)5866(Top 39%)5866(Top 260%)
35K21.75 mi0.75 mi5169+184765+244765+245318(Top 20%)4746(Top 31%)4746(Top 211%)
23M23.00 mi1.25 mi5309-1404876-1114876-1118648(Top 32%)6774(Top 45%)6774(Top 301%)
24M24.00 mi1.00 mi5415-1064957-814957-819377(Top 35%)7075(Top 47%)7075(Top 314%)
40K24.85 mi0.85 mi5550-1355056-995056-9911087(Top 42%)7863(Top 52%)7863(Top 349%)
25.2M25.20 mi0.35 mi5707-1575166-1105166-11017875(Top 67%)10934(Top 72%)10934(Top 486%)
Finish26.22 mi1.02 mi5992-2855376-2105376-21015410(Top 58%)9895(Top 65%)9895(Top 439%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6208

Males

5627

M45-49

5627

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

5928

Males

5408

M45-49

5408

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6208

Males

5627

M45-49

5627

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5705

Males

5232

M45-49

5232

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5618

Males

5178

M45-49

5178

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5149

Males

4752

M45-49

4752

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5279

Males

4822

M45-49

4822

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5000

Males

4546

M45-49

4546

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7010

Males

5866

M45-49

5866

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5318

Males

4746

M45-49

4746

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8648

Males

6774

M45-49

6774

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9377

Males

7075

M45-49

7075

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11087

Males

7863

M45-49

7863

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17875

Males

10934

M45-49

10934

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

15410

Males

9895

M45-49

9895

Passing Analysis

Category:
Athletes Passed
567
Passed By
4055
Net Change
-3488
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2504
5K → 10K41549-1545#2504#4049
10K → 15K18815-797#4049#4846
15K → 20K45307-262#4846#5108
20K → Half1149-38#5108#5146
Half → 25K10898+10#5146#5136
25K → 30K127146-19#5136#5155
30K → 20M9252+40#5155#5115
20M → 21M37109-72#5115#5187
21M → 35K4628+18#5187#5169
35K → 23M28168-140#5169#5309
23M → 24M24130-106#5309#5415
24M → 40K14149-135#5415#5550
40K → 25.2M1158-157#5550#5707
25.2M → Finish12297-285#5707#5992
TOTALS5674055-3488
📊

Passing Visuals

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing