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BOSTON MARATHON 2023

Stephan Schäfer

Bib: 12274•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:23
Rank: #23684
Start → 5K
31:23 | 10:06/mi
10K· 6.21 mi
1:02:50
Rank: #23871 (-187)
5K → 10K
31:27 | 10:07/mi
15K· 9.32 mi
1:34:37
Rank: #23901 (-30)
10K → 15K
31:47 | 10:14/mi
20K· 12.43 mi
2:09:22
Rank: #24246 (-345)
15K → 20K
34:45 | 11:11/mi
Half· 13.11 mi
2:16:24
Rank: #24207 (+39)
20K → Half
7:02 | 10:19/mi
25K· 15.53 mi
2:43:19
Rank: #24189 (+18)
Half → 25K
26:55 | 11:06/mi
30K· 18.64 mi
3:19:42
Rank: #24189
25K → 30K
36:23 | 11:43/mi
20M
3:36:12
Rank: #24218 (-29)
30K → 20M
16:30 | 12:09/mi
21M
3:49:15
Rank: #24212 (+6)
20M → 21M
13:03 | 13:03/mi
35K· 21.75 mi
3:57:47
Rank: #24209 (+3)
21M → 35K
8:32 | 11:24/mi
23M
4:11:12
Rank: #24105 (+104)
35K → 23M
13:25 | 10:43/mi
24M
4:22:11
Rank: #24057 (+48)
23M → 24M
10:59 | 10:59/mi
40K· 24.85 mi
4:31:04
Rank: #23974 (+83)
24M → 40K
8:53 | 10:23/mi
25.2M
4:34:50
Rank: #23928 (+46)
40K → 25.2M
3:46 | 10:55/mi
Finish· 26.22 mi
4:45:36
Rank: #23910 (+18)
25.2M → Finish
10:46 | 10:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:24
Pace10:24 /mi
2nd Half
Distance13.11 mi
Time2:29:12
Pace11:23 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:2831:2310:0631:23
10:06
-
10K
6.21 mi12:18:551:02:5010:0731:27
10:07
+0:01
15K
9.32 mi12:50:421:34:3710:0931:47
10:14
+0:07
20K
12.43 mi13:25:272:09:2210:2534:45
11:11
+0:57
Half
13.11 mi13:32:292:16:2410:247:02
10:19
-0:52
25K
15.53 mi13:59:242:43:1910:3126:55
11:06
+0:47
30K
18.64 mi14:35:473:19:4210:4336:23
11:43
+0:37
20M
20.00 mi14:52:173:36:1210:4916:30
12:09
+0:26
21M
21.00 mi15:05:203:49:1510:5513:03
13:03
+0:54
35K
21.75 mi15:13:523:57:4710:568:32
11:24
-1:39
23M
23.00 mi15:27:174:11:1210:5513:25
10:43
-0:41
24M
24.00 mi15:38:164:22:1110:5510:59
10:59
+0:16
40K
24.85 mi15:47:094:31:0410:548:53
10:23
-0:36
25.2M
25.20 mi15:50:554:34:5010:543:46
10:55
+0:32
Finish
26.22 mi16:01:414:45:3610:5410:46
10:34
-0:21

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

10:06 /mi

Average Pace

10:54 /mi

Slowest Pace

13:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:32

39% of race

Time at Steady Pace

1:40:36

35% of race

Time at Slower Pace

1:14:28

26% of race

Average Pace: 10:54 /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 mi11:47:2831:2310:0631:23
10:06
#23684
10K
6.21 mi12:18:551:02:5010:0731:27
10:07
#23871
15K
9.32 mi12:50:421:34:3710:0931:47
10:14
#23901
20K
12.43 mi13:25:272:09:2210:2534:45
11:11
#24246
Half
13.11 mi13:32:292:16:2410:247:02
10:19
#24207
25K
15.53 mi13:59:242:43:1910:3126:55
11:06
#24189
30K
18.64 mi14:35:473:19:4210:4336:23
11:43
#24189
20M
20.00 mi14:52:173:36:1210:4916:30
12:09
#24218
21M
21.00 mi15:05:203:49:1510:5513:03
13:03
#24212
35K
21.75 mi15:13:523:57:4710:568:32
11:24
#24209
23M
23.00 mi15:27:174:11:1210:5513:25
10:43
#24105
24M
24.00 mi15:38:164:22:1110:5510:59
10:59
#24057
40K
24.85 mi15:47:094:31:0410:548:53
10:23
#23974
25.2M
25.20 mi15:50:554:34:5010:543:46
10:55
#23928
Finish
26.22 mi16:01:414:45:3610:5410:46
10:34
#23910
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi23684139201392023948(Top 90%)14059(Top 93%)14059(Top 685%)
10K6.21 mi3.10 mi23871-18714027-10714027-10723960(Top 90%)14073(Top 93%)14073(Top 686%)
15K9.32 mi3.11 mi23901-3014045-1814045-1823948(Top 90%)14059(Top 93%)14059(Top 685%)
20K12.43 mi3.11 mi24246-34514197-15214197-15224859(Top 93%)14436(Top 95%)14436(Top 704%)
Half13.11 mi0.68 mi24207+3914175+2214175+2223857(Top 90%)13997(Top 92%)13997(Top 682%)
25K15.53 mi2.42 mi24189+1814160+1514160+1524123(Top 91%)14081(Top 93%)14081(Top 686%)
30K18.64 mi3.11 mi2418914132+2814132+2824141(Top 91%)14029(Top 92%)14029(Top 684%)
20M20.00 mi1.36 mi24218-29141321413224371(Top 92%)14075(Top 93%)14075(Top 686%)
21M21.00 mi1.00 mi24212+614124+814124+824132(Top 91%)13948(Top 92%)13948(Top 680%)
35K21.75 mi0.75 mi24209+314117+714117+723968(Top 90%)13831(Top 91%)13831(Top 674%)
23M23.00 mi1.25 mi24105+10414063+5414063+5421791(Top 82%)12810(Top 84%)12810(Top 624%)
24M24.00 mi1.00 mi24057+4814036+2714036+2723019(Top 86%)13355(Top 88%)13355(Top 651%)
40K24.85 mi0.85 mi23974+8313993+4313993+4320952(Top 79%)12361(Top 81%)12361(Top 602%)
25.2M25.20 mi0.35 mi23928+4613970+2313970+2320276(Top 76%)12065(Top 80%)12065(Top 588%)
Finish26.22 mi1.02 mi23910+1813957+1313957+1323136(Top 87%)13406(Top 88%)13406(Top 653%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

23948

Males

14059

M50-54

14059

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

23960

Males

14073

M50-54

14073

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

23948

Males

14059

M50-54

14059

15K→20K

9.3 - 12.4 mi

Top 93%
×5stories
+106ft-86ft

Overall

24859

Males

14436

M50-54

14436

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

23857

Males

13997

M50-54

13997

Half→25K

13.1 - 15.5 mi

Top 91%
×4stories
+66ft-88ft

Overall

24123

Males

14081

M50-54

14081

25K→30K

15.5 - 18.6 mi

Top 91%
×9stories
+181ft-148ft

Overall

24141

Males

14029

M50-54

14029

30K→20M

18.6 - 20.0 mi

Top 92%
×5stories
+64ft-50ft

Overall

24371

Males

14075

M50-54

14075

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

24132

Males

13948

M50-54

13948

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

23968

Males

13831

M50-54

13831

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

21791

Males

12810

M50-54

12810

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

23019

Males

13355

M50-54

13355

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

20952

Males

12361

M50-54

12361

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20276

Males

12065

M50-54

12065

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2stories
+22ft-21ft

Overall

23136

Males

13406

M50-54

13406

Passing Analysis

Category:
Athletes Passed
958
Passed By
1184
Net Change
-226
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23684
5K → 10K112299-187#23684#23871
10K → 15K109139-30#23871#23901
15K → 20K30375-345#23901#24246
20K → Half456+39#24246#24207
Half → 25K10486+18#24207#24189
25K → 30K1181180#24189#24189
30K → 20M4473-29#24189#24218
20M → 21M4337+6#24218#24212
21M → 35K2219+3#24212#24209
35K → 23M1084+104#24209#24105
23M → 24M5911+48#24105#24057
24M → 40K841+83#24057#23974
40K → 25.2M471+46#23974#23928
25.2M → Finish3315+18#23928#23910
TOTALS9581184-226
📊

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