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BOSTON MARATHON 2023

Maria Efimova

Bib: 22568•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
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
8:31/mi
26:27
↑ 97↓ 3451.5%
10K· 6.21 mi
9:12/mi
55:02
↑ 79↓ 1380.4%
15K· 9.32 mi
9:43/mi
1:25:12
↑ 67↓ 78
20K· 12.43 mi
10:21/mi
1:57:20
↑ 106↓ 860.1%
Half· 13.11 mi
10:14/mi
2:04:19
↑ 19↓ 370.5%
25K· 15.53 mi
10:16/mi
2:29:13
↑ 66↓ 880.2%
30K· 18.64 mi
10:33/mi
3:01:59
↑ 181↓ 1480.2%
20M
10:34/mi
3:16:21
↑ 64↓ 500.2%
21M
10:47/mi
3:27:08
↑ 106↓ 241.6%
35K· 21.75 mi
9:57/mi
3:34:35
↑ 17↓ 861.7%
23M
10:20/mi
3:47:31
↑ 23↓ 630.6%
24M
10:04/mi
3:57:35
↓ 821.3%
40K· 24.85 mi
10:27/mi
4:06:31
↓ 200.3%
25.2M
10:55/mi
4:10:17
↑ 13↓ 160.2%
Finish· 26.22 mi
9:55/mi
4:20:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:19
Pace9:29 /mi
2nd Half
Distance13.11 mi
Time2:16:04
Pace10:23 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4826:278:3126:27
8:31
-
10K
6.21 mi11:48:2355:028:5128:35
9:12
+0:41
15K
9.32 mi12:18:331:25:129:0830:10
9:43
+0:31
20K
12.43 mi12:50:411:57:209:2632:08
10:21
+0:38
Half
13.11 mi12:57:402:04:199:296:59
10:14
-0:07
25K
15.53 mi13:22:342:29:139:3624:54
10:16
+0:02
30K
18.64 mi13:55:203:01:599:4632:46
10:33
+0:17
20M
20.00 mi14:09:423:16:219:4914:22
10:34
+0:01
21M
21.00 mi14:20:293:27:089:5210:47
10:47
+0:13
35K
21.75 mi14:27:563:34:359:527:27
9:57
-0:50
23M
23.00 mi14:40:523:47:319:5412:56
10:20
+0:23
24M
24.00 mi14:50:563:57:359:5410:04
10:04
-0:16
40K
24.85 mi14:59:524:06:319:558:56
10:27
+0:23
25.2M
25.20 mi15:03:384:10:179:563:46
10:55
+0:28
Finish
26.22 mi15:13:444:20:239:5610:06
9:55
-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

8:31 /mi

Average Pace

9:56 /mi

Slowest Pace

10:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:45

39% of race

Time at Steady Pace

2:08:43

49% of race

Time at Slower Pace

28:55

11% of race

Average Pace: 9:56 /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 mi11:19:4826:278:3126:27
8:31
#17665
10K
6.21 mi11:48:2355:028:5128:35
9:12
#19973
15K
9.32 mi12:18:331:25:129:0830:10
9:43
#21184
20K
12.43 mi12:50:411:57:209:2632:08
10:21
#21921
Half
13.11 mi12:57:402:04:199:296:59
10:14
#22054
25K
15.53 mi13:22:342:29:139:3624:54
10:16
#22220
30K
18.64 mi13:55:203:01:599:4632:46
10:33
#22254
20M
20.00 mi14:09:423:16:219:4914:22
10:34
#22198
21M
21.00 mi14:20:293:27:089:5210:47
10:47
#22102
35K
21.75 mi14:27:563:34:359:527:27
9:57
#22061
23M
23.00 mi14:40:523:47:319:5412:56
10:20
#21993
24M
24.00 mi14:50:563:57:359:5410:04
10:04
#21949
40K
24.85 mi14:59:524:06:319:558:56
10:27
#21911
25.2M
25.20 mi15:03:384:10:179:563:46
10:55
#21885
Finish
26.22 mi15:13:444:20:239:5610:06
9:55
#21878
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi176656357635722833(Top 86%)9248(Top 81%)9248(Top 1135%)
10K6.21 mi3.10 mi19973-23087753-13967753-139621625(Top 81%)8615(Top 75%)8615(Top 1057%)
15K9.32 mi3.11 mi21184-12118380-6278380-62722833(Top 86%)9248(Top 81%)9248(Top 1135%)
20K12.43 mi3.11 mi21921-7378788-4088788-40823553(Top 88%)9662(Top 85%)9662(Top 1186%)
Half13.11 mi0.68 mi22054-1338859-718859-7123733(Top 89%)9754(Top 85%)9754(Top 1197%)
25K15.53 mi2.42 mi22220-1668954-958954-9522778(Top 86%)9261(Top 81%)9261(Top 1136%)
30K18.64 mi3.11 mi22254-348979-258979-2522305(Top 84%)9075(Top 79%)9075(Top 1113%)
20M20.00 mi1.36 mi22198+568957+228957+2221907(Top 82%)8928(Top 78%)8928(Top 1095%)
21M21.00 mi1.00 mi22102+968917+408917+4020354(Top 76%)8122(Top 71%)8122(Top 997%)
35K21.75 mi0.75 mi22061+418894+238894+2321171(Top 80%)8585(Top 75%)8585(Top 1053%)
23M23.00 mi1.25 mi21993+688862+328862+3220913(Top 79%)8473(Top 74%)8473(Top 1040%)
24M24.00 mi1.00 mi21949+448850+128850+1220994(Top 79%)8545(Top 75%)8545(Top 1048%)
40K24.85 mi0.85 mi21911+388844+68844+621101(Top 79%)8672(Top 76%)8672(Top 1064%)
25.2M25.20 mi0.35 mi21885+268837+78837+720317(Top 76%)8230(Top 72%)8230(Top 1010%)
Finish26.22 mi1.02 mi21878+78845-88845-821525(Top 81%)8860(Top 78%)8860(Top 1087%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

22833

Females

9248

F55-59

9248

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

21625

Females

8615

F55-59

8615

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

22833

Females

9248

F55-59

9248

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

23553

Females

9662

F55-59

9662

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

23733

Females

9754

F55-59

9754

Half→25K

13.1 - 15.5 mi

Top 86%
×4story building
+66ft-88ft

Overall

22778

Females

9261

F55-59

9261

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

22305

Females

9075

F55-59

9075

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

21907

Females

8928

F55-59

8928

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

20354

Females

8122

F55-59

8122

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21171

Females

8585

F55-59

8585

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

20913

Females

8473

F55-59

8473

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

20994

Females

8545

F55-59

8545

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

21101

Females

8672

F55-59

8672

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20317

Females

8230

F55-59

8230

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21525

Females

8860

F55-59

8860

Passing Analysis

Category:
Athletes Passed
744
Passed By
4957
Net Change
-4213
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17665
5K → 10K142322-2308#17665#19973
10K → 15K141225-1211#19973#21184
15K → 20K13750-737#21184#21921
20K → Half7140-133#21921#22054
Half → 25K58224-166#22054#22220
25K → 30K112146-34#22220#22254
30K → 20M9337+56#22254#22198
20M → 21M11115+96#22198#22102
21M → 35K498+41#22102#22061
35K → 23M8618+68#22061#21993
23M → 24M6117+44#21993#21949
24M → 40K5416+38#21949#21911
40K → 25.2M337+26#21911#21885
25.2M → Finish3932+7#21885#21878
TOTALS7444957-4213
📊

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