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BOSTON MARATHON 2023

Rebecca Bradley

IL

Bib: 22880 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 44%
Division (F60-64)
#0 / 527
Top 13%
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
8:21/mi
25:57
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:14/mi
51:31
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:15/mi
1:17:09
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:32/mi
1:43:39
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:27/mi
1:49:25
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:38/mi
2:10:20
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:05/mi
2:38:33
↑ 181↓ 1480.2%
138 ft elev
20M
9:14/mi
2:51:06
↑ 64↓ 500.2%
148 ft elev
21M
10:07/mi
3:01:13
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:00/mi
3:07:57
↑ 17↓ 861.7%
156 ft elev
23M
8:59/mi
3:19:12
↑ 23↓ 630.6%
116 ft elev
24M
8:50/mi
3:28:02
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:18/mi
3:35:59
↓ 200.3%
20 ft elev
25.2M
9:40/mi
3:39:19
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:52/mi
3:48:21
↑ 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
Time1:49:25
Pace8:21 /mi
2nd Half
Distance13.11 mi
Time1:58:56
Pace9:04 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:2525:578:2125:57
8:21
-
10K
6.21 mi11:45:5951:318:1725:34
8:14
-0:07
15K
9.32 mi12:11:371:17:098:1725:38
8:15
+0:01
20K
12.43 mi12:38:071:43:398:2026:30
8:32
+0:17
Half
13.11 mi12:43:531:49:258:215:46
8:27
-0:05
25K
15.53 mi13:04:482:10:208:2320:55
8:38
+0:11
30K
18.64 mi13:33:012:38:338:3028:13
9:05
+0:27
20M
20.00 mi13:45:342:51:068:3312:33
9:14
+0:09
21M
21.00 mi13:55:413:01:138:3810:07
10:07
+0:53
35K
21.75 mi14:02:253:07:578:396:44
9:00
-1:07
23M
23.00 mi14:13:403:19:128:4011:15
8:59
-0:01
24M
24.00 mi14:22:303:28:028:408:50
8:50
-0:09
40K
24.85 mi14:30:273:35:598:417:57
9:18
+0:28
25.2M
25.20 mi14:33:473:39:198:423:20
9:40
+0:22
Finish
26.22 mi14:42:493:48:218:439:02
8:52
-0:48

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

8:14 /mi

Average Pace

8:43 /mi

Slowest Pace

10:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:25

48% of race

Time at Steady Pace

1:24:59

37% of race

Time at Slower Pace

33:57

15% of race

Average Pace: 8:43 /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 mi11:20:2525:578:2125:57
8:21
#16534
10K
6.21 mi11:45:5951:318:1725:34
8:14
#16447
15K
9.32 mi12:11:371:17:098:1725:38
8:15
#16353
20K
12.43 mi12:38:071:43:398:2026:30
8:32
#16553
Half
13.11 mi12:43:531:49:258:215:46
8:27
#16618
25K
15.53 mi13:04:482:10:208:2320:55
8:38
#16672
30K
18.64 mi13:33:012:38:338:3028:13
9:05
#16815
20M
20.00 mi13:45:342:51:068:3312:33
9:14
#16878
21M
21.00 mi13:55:413:01:138:3810:07
10:07
#16967
35K
21.75 mi14:02:253:07:578:396:44
9:00
#17013
23M
23.00 mi14:13:403:19:128:4011:15
8:59
#16940
24M
24.00 mi14:22:303:28:028:408:50
8:50
#16917
40K
24.85 mi14:30:273:35:598:417:57
9:18
#16939
25.2M
25.20 mi14:33:473:39:198:423:20
9:40
#16926
Finish
26.22 mi14:42:493:48:218:439:02
8:52
#16942
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi165345627562716237(Top 61%)5433(Top 48%)5433(Top 1031%)
10K6.21 mi3.10 mi16447+875554+735554+7316467(Top 62%)5557(Top 49%)5557(Top 1054%)
15K9.32 mi3.11 mi16353+945502+525502+5216237(Top 61%)5433(Top 48%)5433(Top 1031%)
20K12.43 mi3.11 mi16553-2005648-1465648-14617054(Top 64%)5957(Top 52%)5957(Top 1130%)
Half13.11 mi0.68 mi16618-655697-495697-4917495(Top 66%)6178(Top 54%)6178(Top 1172%)
25K15.53 mi2.42 mi16672-545746-495746-4916974(Top 64%)5992(Top 52%)5992(Top 1137%)
30K18.64 mi3.11 mi16815-1435855-1095855-10917611(Top 66%)6421(Top 56%)6421(Top 1218%)
20M20.00 mi1.36 mi16878-635901-465901-4617727(Top 67%)6591(Top 58%)6591(Top 1251%)
21M21.00 mi1.00 mi16967-895972-715972-7118456(Top 69%)7024(Top 61%)7024(Top 1333%)
35K21.75 mi0.75 mi17013-466006-346006-3417923(Top 67%)6791(Top 59%)6791(Top 1289%)
23M23.00 mi1.25 mi16940+735986+205986+2016017(Top 60%)5756(Top 50%)5756(Top 1092%)
24M24.00 mi1.00 mi16917+235991-55991-516411(Top 62%)6031(Top 53%)6031(Top 1144%)
40K24.85 mi0.85 mi16939-226026-356026-3517531(Top 66%)6696(Top 59%)6696(Top 1271%)
25.2M25.20 mi0.35 mi16926+136030-46030-416009(Top 60%)5873(Top 51%)5873(Top 1114%)
Finish26.22 mi1.02 mi16942-166046-166046-1617353(Top 65%)6561(Top 57%)6561(Top 1245%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

16237

Females

5433

F60-64

5433

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16467

Females

5557

F60-64

5557

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

16237

Females

5433

F60-64

5433

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

17054

Females

5957

F60-64

5957

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

17495

Females

6178

F60-64

6178

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

16974

Females

5992

F60-64

5992

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

17611

Females

6421

F60-64

6421

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

17727

Females

6591

F60-64

6591

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

18456

Females

7024

F60-64

7024

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

17923

Females

6791

F60-64

6791

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

16017

Females

5756

F60-64

5756

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

16411

Females

6031

F60-64

6031

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17531

Females

6696

F60-64

6696

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16009

Females

5873

F60-64

5873

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

17353

Females

6561

F60-64

6561

Passing Analysis

Category:
Athletes Passed
1442
Passed By
1850
Net Change
-408
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16534
5K → 10K351264+87#16534#16447
10K → 15K238144+94#16447#16353
15K → 20K108308-200#16353#16553
20K → Half1681-65#16553#16618
Half → 25K117171-54#16618#16672
25K → 30K136279-143#16672#16815
30K → 20M59122-63#16815#16878
20M → 21M50139-89#16878#16967
21M → 35K3480-46#16967#17013
35K → 23M11845+73#17013#16940
23M → 24M6946+23#16940#16917
24M → 40K5173-22#16917#16939
40K → 25.2M3623+13#16939#16926
25.2M → Finish5975-16#16926#16942
TOTALS14421850-408
📊

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