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BOSTON MARATHON 2023

Mary Crews

VA

Bib: 23268 F

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
Top 47%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:49/mi
27:23
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:38/mi
54:11
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:47/mi
1:21:29
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:58/mi
1:49:20
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:58/mi
1:55:27
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:16/mi
2:17:56
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:32/mi
2:47:32
↑ 181↓ 1480.2%
138 ft elev
20M
9:49/mi
3:00:52
↑ 64↓ 500.2%
148 ft elev
21M
10:44/mi
3:11:36
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:29/mi
3:18:42
↑ 17↓ 861.7%
156 ft elev
23M
9:54/mi
3:31:06
↑ 23↓ 630.6%
116 ft elev
24M
9:29/mi
3:40:35
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:48/mi
3:48:58
↓ 200.3%
20 ft elev
25.2M
10:44/mi
3:52:40
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:40/mi
4:02:31
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:27
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:07:04
Pace9:42 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:0027:238:4927:23
8:49
-
10K
6.21 mi11:49:4854:118:4326:48
8:38
-0:11
15K
9.32 mi12:17:061:21:298:4527:18
8:47
+0:09
20K
12.43 mi12:44:571:49:208:4827:51
8:58
+0:11
Half
13.11 mi12:51:041:55:278:486:07
8:58
0:00
25K
15.53 mi13:13:332:17:568:5322:29
9:16
+0:18
30K
18.64 mi13:43:092:47:328:5929:36
9:32
+0:16
20M
20.00 mi13:56:293:00:529:0313:20
9:49
+0:17
21M
21.00 mi14:07:133:11:369:0710:44
10:44
+0:55
35K
21.75 mi14:14:193:18:429:087:06
9:29
-1:15
23M
23.00 mi14:26:433:31:069:1112:24
9:54
+0:25
24M
24.00 mi14:36:123:40:359:119:29
9:29
-0:25
40K
24.85 mi14:44:353:48:589:138:23
9:48
+0:19
25.2M
25.20 mi14:48:173:52:409:143:42
10:44
+0:56
Finish
26.22 mi14:58:084:02:319:159:51
9:40
-1:04

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

8:38 /mi

Average Pace

9:15 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:27

48% of race

Time at Steady Pace

1:18:31

32% of race

Time at Slower Pace

48:33

20% of race

Average Pace: 9:15 /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 mi11:23:0027:238:4927:23
8:49
#19550
10K
6.21 mi11:49:4854:118:4326:48
8:38
#19234
15K
9.32 mi12:17:061:21:298:4527:18
8:47
#19293
20K
12.43 mi12:44:571:49:208:4827:51
8:58
#19314
Half
13.11 mi12:51:041:55:278:486:07
8:58
#19358
25K
15.53 mi13:13:332:17:568:5322:29
9:16
#19522
30K
18.64 mi13:43:092:47:328:5929:36
9:32
#19538
20M
20.00 mi13:56:293:00:529:0313:20
9:49
#19570
21M
21.00 mi14:07:133:11:369:0710:44
10:44
#19612
35K
21.75 mi14:14:193:18:429:087:06
9:29
#19625
23M
23.00 mi14:26:433:31:069:1112:24
9:54
#19650
24M
24.00 mi14:36:123:40:359:119:29
9:29
#19626
40K
24.85 mi14:44:353:48:589:138:23
9:48
#19627
25.2M
25.20 mi14:48:173:52:409:143:42
10:44
#19638
Finish
26.22 mi14:58:084:02:319:159:51
9:40
#19692
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi195507547754719455(Top 73%)7366(Top 64%)7366(Top 904%)
10K6.21 mi3.10 mi19234+3167300+2477300+24718995(Top 71%)7080(Top 62%)7080(Top 869%)
15K9.32 mi3.11 mi19293-597314-147314-1419455(Top 73%)7366(Top 64%)7366(Top 904%)
20K12.43 mi3.11 mi19314-217314731419543(Top 73%)7407(Top 65%)7407(Top 909%)
Half13.11 mi0.68 mi19358-447341-277341-2720326(Top 76%)7861(Top 69%)7861(Top 965%)
25K15.53 mi2.42 mi19522-1647433-927433-9220112(Top 76%)7758(Top 68%)7758(Top 952%)
30K18.64 mi3.11 mi19538-167449-167449-1619536(Top 73%)7496(Top 66%)7496(Top 920%)
20M20.00 mi1.36 mi19570-327488-397488-3919899(Top 75%)7794(Top 68%)7794(Top 956%)
21M21.00 mi1.00 mi19612-427521-337521-3320225(Top 76%)8046(Top 70%)8046(Top 987%)
35K21.75 mi0.75 mi19625-137534-137534-1319834(Top 75%)7828(Top 69%)7828(Top 960%)
23M23.00 mi1.25 mi19650-257553-197553-1919706(Top 74%)7802(Top 68%)7802(Top 957%)
24M24.00 mi1.00 mi19626+247553755319164(Top 72%)7540(Top 66%)7540(Top 925%)
40K24.85 mi0.85 mi19627-17565-127565-1219416(Top 73%)7723(Top 68%)7723(Top 948%)
25.2M25.20 mi0.35 mi19638-117576-117576-1119812(Top 74%)7953(Top 70%)7953(Top 976%)
Finish26.22 mi1.02 mi19692-547613-377613-3720693(Top 78%)8403(Top 74%)8403(Top 1031%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19455

Females

7366

F55-59

7366

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18995

Females

7080

F55-59

7080

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19455

Females

7366

F55-59

7366

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

19543

Females

7407

F55-59

7407

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

20326

Females

7861

F55-59

7861

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

20112

Females

7758

F55-59

7758

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19536

Females

7496

F55-59

7496

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

19899

Females

7794

F55-59

7794

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

20225

Females

8046

F55-59

8046

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

19834

Females

7828

F55-59

7828

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19706

Females

7802

F55-59

7802

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

19164

Females

7540

F55-59

7540

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19416

Females

7723

F55-59

7723

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19812

Females

7953

F55-59

7953

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20693

Females

8403

F55-59

8403

Passing Analysis

Category:
Athletes Passed
1480
Passed By
1622
Net Change
-142
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19550
5K → 10K526210+316#19550#19234
10K → 15K163222-59#19234#19293
15K → 20K151172-21#19293#19314
20K → Half1660-44#19314#19358
Half → 25K71235-164#19358#19522
25K → 30K155171-16#19522#19538
30K → 20M75107-32#19538#19570
20M → 21M64106-42#19570#19612
21M → 35K3346-13#19612#19625
35K → 23M6489-25#19625#19650
23M → 24M6541+24#19650#19626
24M → 40K4748-1#19626#19627
40K → 25.2M2435-11#19627#19638
25.2M → Finish2680-54#19638#19692
TOTALS14801622-142
📊

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