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BOSTON MARATHON 2024

Samalya Schaefer

Bib: 1993•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 1%
Gender (Male)
#0 / 14578
Top 2%
Masters (Masters Men)
#0 / 9729
Top 0.3%
Division (M40-44)
#0 / 2009
Top 1%
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
5:42/mi
17:43
↑ 97↓ 3451.5%
10K· 6.21 mi
5:43/mi
35:30
↑ 79↓ 1380.4%
15K· 9.32 mi
5:45/mi
53:21
↑ 67↓ 78
20K· 12.43 mi
5:50/mi
1:11:28
↑ 106↓ 860.1%
Half· 13.11 mi
5:47/mi
1:15:25
↑ 19↓ 370.5%
25K· 15.53 mi
5:54/mi
1:29:44
↑ 66↓ 880.2%
30K· 18.64 mi
6:10/mi
1:48:54
↑ 181↓ 1480.2%
20M
6:13/mi
1:57:21
↑ 64↓ 500.2%
21M
6:36/mi
2:03:57
↑ 106↓ 241.6%
35K· 21.75 mi
5:57/mi
2:08:24
↑ 17↓ 861.7%
23M
6:06/mi
2:16:02
↑ 23↓ 630.6%
24M
6:00/mi
2:22:02
↓ 821.3%
40K· 24.85 mi
6:11/mi
2:27:19
↓ 200.3%
25.2M
6:58/mi
2:29:43
↑ 13↓ 160.2%
Finish· 26.22 mi
6:25/mi
2:36:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:15:25
Pace5:45 /mi
2nd Half
Distance13.11 mi
Time1:20:50
Pace6:10 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:5417:435:4217:43
5:42
-
10K
6.21 mi10:35:4135:305:4317:47
5:43
+0:01
15K
9.32 mi10:53:3253:215:4317:51
5:45
+0:02
20K
12.43 mi11:11:391:11:285:4518:07
5:50
+0:05
Half
13.11 mi11:15:361:15:255:453:57
5:47
-0:03
25K
15.53 mi11:29:551:29:445:4714:19
5:54
+0:07
30K
18.64 mi11:49:051:48:545:5119:10
6:10
+0:16
20M
20.00 mi11:57:321:57:215:528:27
6:13
+0:03
21M
21.00 mi12:04:082:03:575:546:36
6:36
+0:23
35K
21.75 mi12:08:352:08:245:544:27
5:57
-0:39
23M
23.00 mi12:16:132:16:025:557:38
6:06
+0:09
24M
24.00 mi12:22:132:22:025:556:00
6:00
-0:06
40K
24.85 mi12:27:302:27:195:565:17
6:11
+0:11
25.2M
25.20 mi12:29:542:29:435:562:24
6:58
+0:47
Finish
26.22 mi12:36:262:36:155:586:32
6:25
-0:33

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

5:42 /mi

Average Pace

5:58 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

57:18

37% of race

Time at Steady Pace

1:09:41

45% of race

Time at Slower Pace

29:16

19% of race

Average Pace: 5:58 /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 mi10:17:5417:435:4217:43
5:42
#365
10K
6.21 mi10:35:4135:305:4317:47
5:43
#347
15K
9.32 mi10:53:3253:215:4317:51
5:45
#335
20K
12.43 mi11:11:391:11:285:4518:07
5:50
#316
Half
13.11 mi11:15:361:15:255:453:57
5:47
#317
25K
15.53 mi11:29:551:29:445:4714:19
5:54
#293
30K
18.64 mi11:49:051:48:545:5119:10
6:10
#296
20M
20.00 mi11:57:321:57:215:528:27
6:13
#294
21M
21.00 mi12:04:082:03:575:546:36
6:36
#294
35K
21.75 mi12:08:352:08:245:544:27
5:57
#289
23M
23.00 mi12:16:132:16:025:557:38
6:06
#279
24M
24.00 mi12:22:132:22:025:556:00
6:00
#270
40K
24.85 mi12:27:302:27:195:565:17
6:11
#261
25.2M
25.20 mi12:29:542:29:435:562:24
6:58
#263
Finish
26.22 mi12:36:262:36:155:586:32
6:25
#270
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi365344344300(Top 1%)278(Top 2%)278(Top 14%)
10K6.21 mi3.10 mi347+18326+18326+18342(Top 1%)320(Top 2%)320(Top 16%)
15K9.32 mi3.11 mi335+12313+13313+13300(Top 1%)278(Top 2%)278(Top 14%)
20K12.43 mi3.11 mi316+19294+19294+19319(Top 1%)297(Top 2%)297(Top 15%)
Half13.11 mi0.68 mi317-1295-1295-1356(Top 1%)335(Top 2%)335(Top 17%)
25K15.53 mi2.42 mi293+24271+24271+24322(Top 1%)300(Top 2%)300(Top 15%)
30K18.64 mi3.11 mi296-3274-3274-3431(Top 2%)403(Top 3%)403(Top 20%)
20M20.00 mi1.36 mi294+2272+2272+2402(Top 2%)373(Top 3%)373(Top 19%)
21M21.00 mi1.00 mi294272272445(Top 2%)417(Top 3%)417(Top 21%)
35K21.75 mi0.75 mi289+5267+5267+5305(Top 1%)281(Top 2%)281(Top 14%)
23M23.00 mi1.25 mi279+10257+10257+10241(Top 0.9%)219(Top 2%)219(Top 11%)
24M24.00 mi1.00 mi270+9248+9248+9265(Top 1%)242(Top 2%)242(Top 12%)
40K24.85 mi0.85 mi261+9238+10238+10311(Top 1%)286(Top 2%)286(Top 14%)
25.2M25.20 mi0.35 mi263-2240-2240-2505(Top 2%)464(Top 3%)464(Top 23%)
Finish26.22 mi1.02 mi270-7247-7247-71138(Top 4%)1040(Top 7%)1040(Top 52%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21story building
+97ft-345ft

Overall

300

Males

278

M40-44

278

5K→10K

3.1 - 6.2 mi

Top 1%
×5story building
+79ft-138ft

Overall

342

Males

320

M40-44

320

10K→15K

6.2 - 9.3 mi

Top 1%
×3story building
+67ft-78ft

Overall

300

Males

278

M40-44

278

15K→20K

9.3 - 12.4 mi

Top 1%
×5story building
+106ft-86ft

Overall

319

Males

297

M40-44

297

20K→Half

12.4 - 13.1 mi

Top 1%
×2story building
+19ft-37ft

Overall

356

Males

335

M40-44

335

Half→25K

13.1 - 15.5 mi

Top 1%
×4story building
+66ft-88ft

Overall

322

Males

300

M40-44

300

25K→30K

15.5 - 18.6 mi

Top 2%
×9story building
+181ft-148ft

Overall

431

Males

403

M40-44

403

30K→20M

18.6 - 20.0 mi

Top 2%
×5story building
+64ft-50ft

Overall

402

Males

373

M40-44

373

20M→21M

20.0 - 21.0 mi

Top 2%
×8story building
+106ft-24ft

Overall

445

Males

417

M40-44

417

21M→35K

21.0 - 21.8 mi

Top 1%
×7story building
+17ft-86ft

Overall

305

Males

281

M40-44

281

35K→23M

21.8 - 23.0 mi

Top 0.9%
×5story building
+23ft-63ft

Overall

241

Males

219

M40-44

219

23M→24M

23.0 - 24.0 mi

Top 1%
×6story building
+12ft-82ft

Overall

265

Males

242

M40-44

242

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

311

Males

286

M40-44

286

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

505

Males

464

M40-44

464

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2story building
+22ft-21ft

Overall

1138

Males

1040

M40-44

1040

Passing Analysis

Category:
Athletes Passed
202
Passed By
107
Net Change
+95
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#365
5K → 10K3315+18#365#347
10K → 15K2311+12#347#335
15K → 20K278+19#335#316
20K → Half34-1#316#317
Half → 25K284+24#317#293
25K → 30K2023-3#293#296
30K → 20M97+2#296#294
20M → 21M990#294#294
21M → 35K116+5#294#289
35K → 23M144+10#289#279
23M → 24M123+9#279#270
24M → 40K101+9#270#261
40K → 25.2M02-2#261#263
25.2M → Finish310-7#263#270
TOTALS202107+95
📊

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