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BOSTON MARATHON 2023

Beth Greenwood

Bib: 18284•F

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
8:38/mi
26:50
↑ 97↓ 3451.5%
10K· 6.21 mi
8:36/mi
53:32
↑ 79↓ 1380.4%
15K· 9.32 mi
8:34/mi
1:20:10
↑ 67↓ 78
20K· 12.43 mi
8:47/mi
1:47:26
↑ 106↓ 860.1%
Half· 13.11 mi
8:45/mi
1:53:24
↑ 19↓ 370.5%
25K· 15.53 mi
8:59/mi
2:15:10
↑ 66↓ 880.2%
30K· 18.64 mi
9:14/mi
2:43:52
↑ 181↓ 1480.2%
20M
9:31/mi
2:56:48
↑ 64↓ 500.2%
21M
9:56/mi
3:06:44
↑ 106↓ 241.6%
35K· 21.75 mi
9:12/mi
3:13:37
↑ 17↓ 861.7%
23M
9:47/mi
3:25:52
↑ 23↓ 630.6%
24M
9:48/mi
3:35:40
↓ 821.3%
40K· 24.85 mi
9:41/mi
3:43:57
↓ 200.3%
25.2M
10:12/mi
3:47:28
↑ 13↓ 160.2%
Finish· 26.22 mi
8:59/mi
3:56:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:24
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:03:13
Pace9:24 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:4926:508:3826:50
8:38
-
10K
6.21 mi11:44:3153:328:3726:42
8:36
-0:02
15K
9.32 mi12:11:091:20:108:3626:38
8:34
-0:02
20K
12.43 mi12:38:251:47:268:3927:16
8:47
+0:13
Half
13.11 mi12:44:231:53:248:395:58
8:45
-0:02
25K
15.53 mi13:06:092:15:108:4221:46
8:59
+0:14
30K
18.64 mi13:34:512:43:528:4728:42
9:14
+0:15
20M
20.00 mi13:47:472:56:488:5012:56
9:31
+0:17
21M
21.00 mi13:57:433:06:448:549:56
9:56
+0:25
35K
21.75 mi14:04:363:13:378:546:53
9:12
-0:44
23M
23.00 mi14:16:513:25:528:5712:15
9:47
+0:35
24M
24.00 mi14:26:393:35:408:599:48
9:48
+0:01
40K
24.85 mi14:34:563:43:579:018:17
9:41
-0:07
25.2M
25.20 mi14:38:273:47:289:023:31
10:12
+0:31
Finish
26.22 mi14:47:363:56:379:029:09
8:59
-1:13

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

8:34 /mi

Average Pace

9:02 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:54

76% of race

Time at Steady Pace

53:12

22% of race

Time at Slower Pace

3:31

1% of race

Average Pace: 9:01 /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 mi11:17:4926:508:3826:50
8:38
#18478
10K
6.21 mi11:44:3153:328:3726:42
8:36
#18612
15K
9.32 mi12:11:091:20:108:3626:38
8:34
#18489
20K
12.43 mi12:38:251:47:268:3927:16
8:47
#18491
Half
13.11 mi12:44:231:53:248:395:58
8:45
#18519
25K
15.53 mi13:06:092:15:108:4221:46
8:59
#18583
30K
18.64 mi13:34:512:43:528:4728:42
9:14
#18523
20M
20.00 mi13:47:472:56:488:5012:56
9:31
#18553
21M
21.00 mi13:57:433:06:448:549:56
9:56
#18501
35K
21.75 mi14:04:363:13:378:546:53
9:12
#18504
23M
23.00 mi14:16:513:25:528:5712:15
9:47
#18577
24M
24.00 mi14:26:393:35:408:599:48
9:48
#18683
40K
24.85 mi14:34:563:43:579:018:17
9:41
#18717
25.2M
25.20 mi14:38:273:47:289:023:31
10:12
#18711
Finish
26.22 mi14:47:363:56:379:029:09
8:59
#18687
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi184786859685918286(Top 69%)6668(Top 58%)6668(Top 355%)
10K6.21 mi3.10 mi18612-1346890-316890-3118814(Top 71%)6971(Top 61%)6971(Top 371%)
15K9.32 mi3.11 mi18489+1236811+796811+7918286(Top 69%)6668(Top 58%)6668(Top 355%)
20K12.43 mi3.11 mi18491-26796+156796+1518553(Top 70%)6822(Top 60%)6822(Top 363%)
Half13.11 mi0.68 mi18519-286812-166812-1619227(Top 72%)7218(Top 63%)7218(Top 384%)
25K15.53 mi2.42 mi18583-646882-706882-7018853(Top 71%)7047(Top 62%)7047(Top 375%)
30K18.64 mi3.11 mi18523+606882688218350(Top 69%)6840(Top 60%)6840(Top 364%)
20M20.00 mi1.36 mi18553-306900-186900-1818935(Top 71%)7261(Top 64%)7261(Top 387%)
21M21.00 mi1.00 mi18501+526879+216879+2117810(Top 67%)6649(Top 58%)6649(Top 354%)
35K21.75 mi0.75 mi18504-36890-116890-1118759(Top 70%)7249(Top 63%)7249(Top 386%)
23M23.00 mi1.25 mi18577-736936-466936-4619391(Top 73%)7623(Top 67%)7623(Top 406%)
24M24.00 mi1.00 mi18683-1067016-807016-8020227(Top 76%)8101(Top 71%)8101(Top 431%)
40K24.85 mi0.85 mi18717-347046-307046-3018994(Top 71%)7490(Top 66%)7490(Top 399%)
25.2M25.20 mi0.35 mi18711+67053-77053-718152(Top 68%)7032(Top 62%)7032(Top 374%)
Finish26.22 mi1.02 mi18687+247043+107043+1017906(Top 67%)6868(Top 60%)6868(Top 366%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18286

Females

6668

F40-44

6668

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18814

Females

6971

F40-44

6971

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18286

Females

6668

F40-44

6668

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18553

Females

6822

F40-44

6822

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

19227

Females

7218

F40-44

7218

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

18853

Females

7047

F40-44

7047

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

18350

Females

6840

F40-44

6840

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

18935

Females

7261

F40-44

7261

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

17810

Females

6649

F40-44

6649

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

18759

Females

7249

F40-44

7249

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

19391

Females

7623

F40-44

7623

23M→24M

23.0 - 24.0 mi

Top 76%
×6story building
+12ft-82ft

Overall

20227

Females

8101

F40-44

8101

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18994

Females

7490

F40-44

7490

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18152

Females

7032

F40-44

7032

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17906

Females

6868

F40-44

6868

Passing Analysis

Category:
Athletes Passed
1454
Passed By
1663
Net Change
-209
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18478
5K → 10K272406-134#18478#18612
10K → 15K241118+123#18612#18489
15K → 20K153155-2#18489#18491
20K → Half1745-28#18491#18519
Half → 25K115179-64#18519#18583
25K → 30K200140+60#18583#18523
30K → 20M82112-30#18523#18553
20M → 21M11563+52#18553#18501
21M → 35K4346-3#18501#18504
35K → 23M59132-73#18504#18577
23M → 24M26132-106#18577#18683
24M → 40K3872-34#18683#18717
40K → 25.2M2721+6#18717#18711
25.2M → Finish6642+24#18711#18687
TOTALS14541663-209
📊

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