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BOSTON MARATHON 2023

Stefan Langer

Bib: 11411•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 40%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 44%
Division (M50-54)
#0 / 2052
Top 46%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:39/mi
23:45
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
46:41
↑ 79↓ 1380.4%
15K· 9.32 mi
7:26/mi
1:09:47
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:33:22
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:38:32
↑ 19↓ 370.5%
25K· 15.53 mi
7:46/mi
1:57:22
↑ 66↓ 880.2%
30K· 18.64 mi
8:00/mi
2:22:13
↑ 181↓ 1480.2%
20M
8:12/mi
2:33:22
↑ 64↓ 500.2%
21M
8:34/mi
2:41:56
↑ 106↓ 241.6%
35K· 21.75 mi
7:57/mi
2:47:53
↑ 17↓ 861.7%
23M
8:26/mi
2:58:27
↑ 23↓ 630.6%
24M
8:13/mi
3:06:40
↓ 821.3%
40K· 24.85 mi
8:22/mi
3:13:49
↓ 200.3%
25.2M
9:05/mi
3:16:57
↑ 13↓ 160.2%
Finish· 26.22 mi
8:05/mi
3:25:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:32
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:46:39
Pace8:08 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4523:457:3923:45
7:39
-
10K
6.21 mi11:13:4146:417:3122:56
7:23
-0:16
15K
9.32 mi11:36:471:09:477:2923:06
7:26
+0:03
20K
12.43 mi12:00:221:33:227:3123:35
7:35
+0:09
Half
13.11 mi12:05:321:38:327:315:10
7:34
-0:01
25K
15.53 mi12:24:221:57:227:3318:50
7:46
+0:12
30K
18.64 mi12:49:132:22:137:3824:51
8:00
+0:14
20M
20.00 mi13:00:222:33:227:4011:09
8:12
+0:12
21M
21.00 mi13:08:562:41:567:438:34
8:34
+0:22
35K
21.75 mi13:14:532:47:537:435:57
7:57
-0:37
23M
23.00 mi13:25:272:58:277:4610:34
8:26
+0:29
24M
24.00 mi13:33:403:06:407:478:13
8:13
-0:13
40K
24.85 mi13:40:493:13:497:487:09
8:22
+0:09
25.2M
25.20 mi13:43:573:16:577:493:08
9:05
+0:43
Finish
26.22 mi13:52:113:25:117:508:14
8:05
-1:00

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

7:23 /mi

Average Pace

7:50 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:22

57% of race

Time at Steady Pace

58:24

28% of race

Time at Slower Pace

29:25

14% of race

Average Pace: 7:50 /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 mi10:50:4523:457:3923:45
7:39
#10956
10K
6.21 mi11:13:4146:417:3122:56
7:23
#10153
15K
9.32 mi11:36:471:09:477:2923:06
7:26
#9918
20K
12.43 mi12:00:221:33:227:3123:35
7:35
#9939
Half
13.11 mi12:05:321:38:327:315:10
7:34
#9986
25K
15.53 mi12:24:221:57:227:3318:50
7:46
#10090
30K
18.64 mi12:49:132:22:137:3824:51
8:00
#10207
20M
20.00 mi13:00:222:33:227:4011:09
8:12
#10303
21M
21.00 mi13:08:562:41:567:438:34
8:34
#10313
35K
21.75 mi13:14:532:47:537:435:57
7:57
#10352
23M
23.00 mi13:25:272:58:277:4610:34
8:26
#10463
24M
24.00 mi13:33:403:06:407:478:13
8:13
#10565
40K
24.85 mi13:40:493:13:497:487:09
8:22
#10611
25.2M
25.20 mi13:43:573:16:577:493:08
9:05
#10652
Finish
26.22 mi13:52:113:25:117:508:14
8:05
#10713
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi10956863786379644(Top 36%)7948(Top 52%)7948(Top 387%)
10K6.21 mi3.10 mi10153+8038236+4018236+4019459(Top 36%)7838(Top 52%)7838(Top 382%)
15K9.32 mi3.11 mi9918+2358117+1198117+1199644(Top 36%)7948(Top 52%)7948(Top 387%)
20K12.43 mi3.11 mi9939-218115+28115+210012(Top 38%)8080(Top 53%)8080(Top 394%)
Half13.11 mi0.68 mi9986-478142-278142-2710769(Top 40%)8495(Top 56%)8495(Top 414%)
25K15.53 mi2.42 mi10090-1048178-368178-3610839(Top 41%)8419(Top 55%)8419(Top 410%)
30K18.64 mi3.11 mi10207-1178196-188196-1810890(Top 41%)8292(Top 55%)8292(Top 404%)
20M20.00 mi1.36 mi10303-968218-228218-2211712(Top 44%)8575(Top 57%)8575(Top 418%)
21M21.00 mi1.00 mi10313-108195+238195+2310851(Top 41%)8048(Top 53%)8048(Top 392%)
35K21.75 mi0.75 mi10352-398198-38198-311733(Top 44%)8433(Top 56%)8433(Top 411%)
23M23.00 mi1.25 mi10463-1118218-208218-2012822(Top 48%)8828(Top 58%)8828(Top 430%)
24M24.00 mi1.00 mi10565-1028236-188236-1812689(Top 48%)8704(Top 57%)8704(Top 424%)
40K24.85 mi0.85 mi10611-468227+98227+912423(Top 47%)8504(Top 56%)8504(Top 414%)
25.2M25.20 mi0.35 mi10652-418244-178244-1712941(Top 49%)8721(Top 57%)8721(Top 425%)
Finish26.22 mi1.02 mi10713-618245-18245-112628(Top 47%)8588(Top 57%)8588(Top 419%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

9644

Males

7948

M50-54

7948

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9459

Males

7838

M50-54

7838

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

9644

Males

7948

M50-54

7948

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10012

Males

8080

M50-54

8080

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

10769

Males

8495

M50-54

8495

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10839

Males

8419

M50-54

8419

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10890

Males

8292

M50-54

8292

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

11712

Males

8575

M50-54

8575

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10851

Males

8048

M50-54

8048

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11733

Males

8433

M50-54

8433

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12822

Males

8828

M50-54

8828

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12689

Males

8704

M50-54

8704

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12423

Males

8504

M50-54

8504

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12941

Males

8721

M50-54

8721

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

12628

Males

8588

M50-54

8588

Passing Analysis

Category:
Athletes Passed
1950*
Passed By
1706
Net Change
+243
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10956
5K → 10K857*54+803#10956#10153
10K → 15K314*79+235#10153#9918
15K → 20K164*185-21#9918#9939
20K → Half855-47#9939#9986
Half → 25K87190-104#9986#10090
25K → 30K120*237-117#10090#10207
30K → 20M54*150-96#10207#10303
20M → 21M8595-10#10303#10313
21M → 35K3675-39#10313#10352
35K → 23M57168-111#10352#10463
23M → 24M44146-102#10463#10565
24M → 40K5298-46#10565#10611
40K → 25.2M2162-41#10611#10652
25.2M → Finish51112-61#10652#10713
TOTALS1950*1706+243

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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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