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BOSTON MARATHON 2023

Eliot Ephraim

Bib: 18668•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
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
8:10/mi
25:22
↑ 97↓ 3451.5%
10K· 6.21 mi
8:06/mi
50:33
↑ 79↓ 1380.4%
15K· 9.32 mi
8:08/mi
1:15:48
↑ 67↓ 78
20K· 12.43 mi
8:15/mi
1:41:27
↑ 106↓ 860.1%
Half· 13.11 mi
8:11/mi
1:47:02
↑ 19↓ 370.5%
25K· 15.53 mi
8:16/mi
2:07:04
↑ 66↓ 880.2%
30K· 18.64 mi
8:36/mi
2:33:46
↑ 181↓ 1480.2%
20M
8:50/mi
2:45:46
↑ 64↓ 500.2%
21M
9:32/mi
2:55:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:36/mi
3:01:44
↑ 17↓ 861.7%
23M
9:19/mi
3:13:24
↑ 23↓ 630.6%
24M
9:20/mi
3:22:44
↓ 821.3%
40K· 24.85 mi
9:23/mi
3:30:45
↓ 200.3%
25.2M
9:46/mi
3:34:07
↑ 13↓ 160.2%
Finish· 26.22 mi
8:21/mi
3:42:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:02
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time1:55:36
Pace8:49 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5125:228:1025:22
8:10
-
10K
6.21 mi11:44:0250:338:0825:11
8:06
-0:04
15K
9.32 mi12:09:171:15:488:0825:15
8:08
+0:02
20K
12.43 mi12:34:561:41:278:1025:39
8:15
+0:07
Half
13.11 mi12:40:311:47:028:105:35
8:11
-0:04
25K
15.53 mi13:00:332:07:048:1120:02
8:16
+0:05
30K
18.64 mi13:27:152:33:468:1526:42
8:36
+0:20
20M
20.00 mi13:39:152:45:468:1712:00
8:50
+0:14
21M
21.00 mi13:48:472:55:188:219:32
9:32
+0:42
35K
21.75 mi13:55:133:01:448:216:26
8:36
-0:56
23M
23.00 mi14:06:533:13:248:2511:40
9:19
+0:43
24M
24.00 mi14:16:133:22:448:279:20
9:20
+0:01
40K
24.85 mi14:24:143:30:458:298:01
9:23
+0:03
25.2M
25.20 mi14:27:363:34:078:303:22
9:46
+0:23
Finish
26.22 mi14:36:073:42:388:308:31
8:21
-1:25

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

8:06 /mi

Average Pace

8:30 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:04

57% of race

Time at Steady Pace

53:39

24% of race

Time at Slower Pace

41:55

19% of race

Average Pace: 8:29 /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 mi11:18:5125:228:1025:22
8:10
#15180
10K
6.21 mi11:44:0250:338:0825:11
8:06
#15339
15K
9.32 mi12:09:171:15:488:0825:15
8:08
#15358
20K
12.43 mi12:34:561:41:278:1025:39
8:15
#15335
Half
13.11 mi12:40:311:47:028:105:35
8:11
#15328
25K
15.53 mi13:00:332:07:048:1120:02
8:16
#15211
30K
18.64 mi13:27:152:33:468:1526:42
8:36
#15116
20M
20.00 mi13:39:152:45:468:1712:00
8:50
#15152
21M
21.00 mi13:48:472:55:188:219:32
9:32
#15189
35K
21.75 mi13:55:133:01:448:216:26
8:36
#15194
23M
23.00 mi14:06:533:13:248:2511:40
9:19
#15353
24M
24.00 mi14:16:133:22:448:279:20
9:20
#15530
40K
24.85 mi14:24:143:30:458:298:01
9:23
#15644
25.2M
25.20 mi14:27:363:34:078:303:22
9:46
#15652
Finish
26.22 mi14:36:073:42:388:308:31
8:21
#15605
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15180104051040515336(Top 58%)10448(Top 69%)10448(Top 735%)
10K6.21 mi3.10 mi15339-15910457-5210457-5215542(Top 58%)10543(Top 69%)10543(Top 741%)
15K9.32 mi3.11 mi15358-1910450+710450+715336(Top 58%)10448(Top 69%)10448(Top 735%)
20K12.43 mi3.11 mi15335+2310422+2810422+2815307(Top 57%)10388(Top 68%)10388(Top 731%)
Half13.11 mi0.68 mi15328+710415+710415+715629(Top 59%)10537(Top 69%)10537(Top 741%)
25K15.53 mi2.42 mi15211+11710344+7110344+7114687(Top 55%)10033(Top 66%)10033(Top 706%)
30K18.64 mi3.11 mi15116+9510266+7810266+7814880(Top 56%)10003(Top 66%)10003(Top 703%)
20M20.00 mi1.36 mi15152-3610262+410262+415587(Top 59%)10238(Top 67%)10238(Top 720%)
21M21.00 mi1.00 mi15189-3710254+810254+816095(Top 60%)10392(Top 68%)10392(Top 731%)
35K21.75 mi0.75 mi15194-510233+2110233+2115824(Top 59%)10215(Top 67%)10215(Top 718%)
23M23.00 mi1.25 mi15353-15910268-3510268-3517582(Top 66%)10937(Top 72%)10937(Top 769%)
24M24.00 mi1.00 mi15530-17710310-4210310-4218578(Top 70%)11339(Top 75%)11339(Top 797%)
40K24.85 mi0.85 mi15644-11410351-4110351-4117827(Top 67%)10949(Top 72%)10949(Top 770%)
25.2M25.20 mi0.35 mi15652-810355-410355-416330(Top 61%)10253(Top 68%)10253(Top 721%)
Finish26.22 mi1.02 mi15605+4710321+3410321+3414434(Top 54%)9454(Top 62%)9454(Top 665%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

15336

Males

10448

M55-59

10448

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

15542

Males

10543

M55-59

10543

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

15336

Males

10448

M55-59

10448

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

15307

Males

10388

M55-59

10388

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15629

Males

10537

M55-59

10537

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

14687

Males

10033

M55-59

10033

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

14880

Males

10003

M55-59

10003

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

15587

Males

10238

M55-59

10238

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

16095

Males

10392

M55-59

10392

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

15824

Males

10215

M55-59

10215

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

17582

Males

10937

M55-59

10937

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

18578

Males

11339

M55-59

11339

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17827

Males

10949

M55-59

10949

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16330

Males

10253

M55-59

10253

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14434

Males

9454

M55-59

9454

Passing Analysis

Category:
Athletes Passed
1452
Passed By
1877
Net Change
-425
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15180
5K → 10K231390-159#15180#15339
10K → 15K173192-19#15339#15358
15K → 20K184161+23#15358#15335
20K → Half3528+7#15335#15328
Half → 25K19477+117#15328#15211
25K → 30K229134+95#15211#15116
30K → 20M66102-36#15116#15152
20M → 21M80117-37#15152#15189
21M → 35K4853-5#15189#15194
35K → 23M45204-159#15194#15353
23M → 24M30207-177#15353#15530
24M → 40K32146-114#15530#15644
40K → 25.2M2533-8#15644#15652
25.2M → Finish8033+47#15652#15605
TOTALS14521877-425
📊

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