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BOSTON MARATHON 2023

Alexandra Battersby

Bib: 20305•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 48%
Gender (Female)
#0 / 11423
Top 32%
Masters (Masters Women)
#0 / 6539
Top 18%
Division (F40-44)
#0 / 1878
Top 34%
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
8:02/mi
24:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:50/mi
49:19
↑ 79↓ 1380.4%
15K· 9.32 mi
7:56/mi
1:13:58
↑ 67↓ 78
20K· 12.43 mi
8:03/mi
1:38:59
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:44:23
↑ 19↓ 370.5%
25K· 15.53 mi
7:58/mi
2:03:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:15/mi
2:29:21
↑ 181↓ 1480.2%
20M
8:17/mi
2:40:37
↑ 64↓ 500.2%
21M
9:03/mi
2:49:40
↑ 106↓ 241.6%
35K· 21.75 mi
7:51/mi
2:55:32
↑ 17↓ 861.7%
23M
8:26/mi
3:06:05
↑ 23↓ 630.6%
24M
7:53/mi
3:13:58
↓ 821.3%
40K· 24.85 mi
8:17/mi
3:21:03
↓ 200.3%
25.2M
8:42/mi
3:24:03
↑ 13↓ 160.2%
Finish· 26.22 mi
8:08/mi
3:32:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:23
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:47:57
Pace8:14 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:0924:588:0224:58
8:02
-
10K
6.21 mi11:41:3049:197:5624:21
7:50
-0:12
15K
9.32 mi12:06:091:13:587:5624:39
7:56
+0:06
20K
12.43 mi12:31:101:38:597:5825:01
8:03
+0:07
Half
13.11 mi12:36:341:44:237:585:24
7:55
-0:08
25K
15.53 mi12:55:532:03:427:5819:19
7:58
+0:03
30K
18.64 mi13:21:322:29:218:0125:39
8:15
+0:17
20M
20.00 mi13:32:482:40:378:0211:16
8:17
+0:02
21M
21.00 mi13:41:512:49:408:059:03
9:03
+0:46
35K
21.75 mi13:47:432:55:328:045:52
7:51
-1:12
23M
23.00 mi13:58:163:06:058:0510:33
8:26
+0:35
24M
24.00 mi14:06:093:13:588:057:53
7:53
-0:33
40K
24.85 mi14:13:143:21:038:057:05
8:17
+0:24
25.2M
25.20 mi14:16:143:24:038:063:00
8:42
+0:25
Finish
26.22 mi14:24:313:32:208:068:17
8:08
-0:34

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

7:50 /mi

Average Pace

8:06 /mi

Slowest Pace

9:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:17

94% of race

Time at Steady Pace

12:03

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:06 /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 mi11:17:0924:588:0224:58
8:02
#14286
10K
6.21 mi11:41:3049:197:5624:21
7:50
#13892
15K
9.32 mi12:06:091:13:587:5624:39
7:56
#13877
20K
12.43 mi12:31:101:38:597:5825:01
8:03
#13828
Half
13.11 mi12:36:341:44:237:585:24
7:55
#13812
25K
15.53 mi12:55:532:03:427:5819:19
7:58
#13586
30K
18.64 mi13:21:322:29:218:0125:39
8:15
#13391
20M
20.00 mi13:32:482:40:378:0211:16
8:17
#13286
21M
21.00 mi13:41:512:49:408:059:03
9:03
#13297
35K
21.75 mi13:47:432:55:328:045:52
7:51
#13187
23M
23.00 mi13:58:163:06:058:0510:33
8:26
#13129
24M
24.00 mi14:06:093:13:588:057:53
7:53
#12994
40K
24.85 mi14:13:143:21:038:057:05
8:17
#12946
25.2M
25.20 mi14:16:143:24:038:063:00
8:42
#12903
Finish
26.22 mi14:24:313:32:208:068:17
8:08
#12885
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi142864201420113888(Top 52%)4025(Top 35%)4025(Top 214%)
10K6.21 mi3.10 mi13892+3943980+2213980+22113477(Top 51%)3710(Top 32%)3710(Top 198%)
15K9.32 mi3.11 mi13877+153984-43984-413888(Top 52%)4025(Top 35%)4025(Top 214%)
20K12.43 mi3.11 mi13828+493978+63978+613884(Top 52%)4043(Top 35%)4043(Top 215%)
Half13.11 mi0.68 mi13812+163970+83970+813799(Top 52%)3984(Top 35%)3984(Top 212%)
25K15.53 mi2.42 mi13586+2263854+1163854+11612493(Top 47%)3364(Top 29%)3364(Top 179%)
30K18.64 mi3.11 mi13391+1953773+813773+8112745(Top 48%)3611(Top 32%)3611(Top 192%)
20M20.00 mi1.36 mi13286+1053728+453728+4512349(Top 46%)3499(Top 31%)3499(Top 186%)
21M21.00 mi1.00 mi13297-113753-253753-2513746(Top 52%)4369(Top 38%)4369(Top 233%)
35K21.75 mi0.75 mi13187+1103703+503703+5011043(Top 41%)2916(Top 26%)2916(Top 155%)
23M23.00 mi1.25 mi13129+583694+93694+912795(Top 48%)3973(Top 35%)3973(Top 212%)
24M24.00 mi1.00 mi12994+1353643+513643+5110467(Top 39%)2832(Top 25%)2832(Top 151%)
40K24.85 mi0.85 mi12946+483643364311998(Top 45%)3688(Top 32%)3688(Top 196%)
25.2M25.20 mi0.35 mi12903+433626+173626+1710900(Top 41%)3172(Top 28%)3172(Top 169%)
Finish26.22 mi1.02 mi12885+183633-73633-713024(Top 49%)4239(Top 37%)4239(Top 226%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

13888

Females

4025

F40-44

4025

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13477

Females

3710

F40-44

3710

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

13888

Females

4025

F40-44

4025

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

13884

Females

4043

F40-44

4043

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13799

Females

3984

F40-44

3984

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

12493

Females

3364

F40-44

3364

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

12745

Females

3611

F40-44

3611

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

12349

Females

3499

F40-44

3499

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

13746

Females

4369

F40-44

4369

21M→35K

21.0 - 21.8 mi

Top 41%
×7story building
+17ft-86ft

Overall

11043

Females

2916

F40-44

2916

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12795

Females

3973

F40-44

3973

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10467

Females

2832

F40-44

2832

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11998

Females

3688

F40-44

3688

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10900

Females

3172

F40-44

3172

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13024

Females

4239

F40-44

4239

Passing Analysis

Category:
Athletes Passed
2355
Passed By
954
Net Change
+1401
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14286
5K → 10K543149+394#14286#13892
10K → 15K187172+15#13892#13877
15K → 20K201152+49#13877#13828
20K → Half4428+16#13828#13812
Half → 25K26438+226#13812#13586
25K → 30K299104+195#13586#13391
30K → 20M14237+105#13391#13286
20M → 21M7990-11#13286#13297
21M → 35K12111+110#13297#13187
35K → 23M11961+58#13187#13129
23M → 24M1449+135#13129#12994
24M → 40K9042+48#12994#12946
40K → 25.2M5411+43#12946#12903
25.2M → Finish6850+18#12903#12885
TOTALS2355954+1401
📊

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