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BOSTON MARATHON 2023

Amanda Bradford

Bib: 20473•F

MO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 38%
Masters (Masters Women)
#0 / 6539
Top 24%
Division (F50-54)
#0 / 1207
Top 16%
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
8:24/mi
26:07
↑ 97↓ 3451.5%
10K· 6.21 mi
8:19/mi
51:58
↑ 79↓ 1380.4%
15K· 9.32 mi
8:18/mi
1:17:45
↑ 67↓ 78
20K· 12.43 mi
8:11/mi
1:43:11
↑ 106↓ 860.1%
Half· 13.11 mi
8:20/mi
1:48:52
↑ 19↓ 370.5%
25K· 15.53 mi
8:07/mi
2:08:33
↑ 66↓ 880.2%
30K· 18.64 mi
8:09/mi
2:33:52
↑ 181↓ 1480.2%
20M
8:02/mi
2:44:47
↑ 64↓ 500.2%
21M
8:26/mi
2:53:13
↑ 106↓ 241.6%
35K· 21.75 mi
8:00/mi
2:59:12
↑ 17↓ 861.7%
23M
8:15/mi
3:09:32
↑ 23↓ 630.6%
24M
8:00/mi
3:17:32
↓ 821.3%
40K· 24.85 mi
8:25/mi
3:24:44
↓ 200.3%
25.2M
9:05/mi
3:27:52
↑ 13↓ 160.2%
Finish· 26.22 mi
8:20/mi
3:36:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:48:52
Pace8:18 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:47:30
Pace8:12 /mi
📊Negative Split: 1.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1026:078:2426:07
8:24
-
10K
6.21 mi11:44:0151:588:2225:51
8:19
-0:05
15K
9.32 mi12:09:481:17:458:2125:47
8:18
-0:01
20K
12.43 mi12:35:141:43:118:1825:26
8:11
-0:07
Half
13.11 mi12:40:551:48:528:185:41
8:20
+0:09
25K
15.53 mi13:00:362:08:338:1719:41
8:07
-0:13
30K
18.64 mi13:25:552:33:528:1525:19
8:09
+0:02
20M
20.00 mi13:36:502:44:478:1410:55
8:02
-0:07
21M
21.00 mi13:45:162:53:138:158:26
8:26
+0:24
35K
21.75 mi13:51:152:59:128:145:59
8:00
-0:26
23M
23.00 mi14:01:353:09:328:1410:20
8:15
+0:15
24M
24.00 mi14:09:353:17:328:148:00
8:00
-0:15
40K
24.85 mi14:16:473:24:448:147:12
8:25
+0:25
25.2M
25.20 mi14:19:553:27:528:153:08
9:05
+0:40
Finish
26.22 mi14:28:253:36:228:158:30
8:20
-0:45

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

8:00 /mi

Average Pace

8:15 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:33:14

99% of race

Time at Steady Pace

3:08

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:15 /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 mi11:18:1026:078:2426:07
8:24
#16924
10K
6.21 mi11:44:0151:588:2225:51
8:19
#16937
15K
9.32 mi12:09:481:17:458:2125:47
8:18
#16797
20K
12.43 mi12:35:141:43:118:1825:26
8:11
#16304
Half
13.11 mi12:40:551:48:528:185:41
8:20
#16314
25K
15.53 mi13:00:362:08:338:1719:41
8:07
#15862
30K
18.64 mi13:25:552:33:528:1525:19
8:09
#15157
20M
20.00 mi13:36:502:44:478:1410:55
8:02
#14837
21M
21.00 mi13:45:162:53:138:158:26
8:26
#14535
35K
21.75 mi13:51:152:59:128:145:59
8:00
#14458
23M
23.00 mi14:01:353:09:328:1410:20
8:15
#14260
24M
24.00 mi14:09:353:17:328:148:00
8:00
#14105
40K
24.85 mi14:16:473:24:448:147:12
8:25
#14033
25.2M
25.20 mi14:19:553:27:528:153:08
9:05
#14007
Finish
26.22 mi14:28:253:36:228:158:30
8:20
#14019
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi169245874587416524(Top 62%)5603(Top 49%)5603(Top 464%)
10K6.21 mi3.10 mi16937-135871+35871+317066(Top 64%)5907(Top 52%)5907(Top 489%)
15K9.32 mi3.11 mi16797+1405791+805791+8016524(Top 62%)5603(Top 49%)5603(Top 464%)
20K12.43 mi3.11 mi16304+4935490+3015490+30114891(Top 56%)4640(Top 41%)4640(Top 384%)
Half13.11 mi0.68 mi16314-105498-85498-816670(Top 63%)5681(Top 50%)5681(Top 471%)
25K15.53 mi2.42 mi15862+4525249+2495249+24913640(Top 51%)4007(Top 35%)4007(Top 332%)
30K18.64 mi3.11 mi15157+7054857+3924857+39212005(Top 45%)3192(Top 28%)3192(Top 264%)
20M20.00 mi1.36 mi14837+3204661+1964661+19610562(Top 40%)2529(Top 22%)2529(Top 210%)
21M21.00 mi1.00 mi14535+3024514+1474514+14710119(Top 38%)2452(Top 21%)2452(Top 203%)
35K21.75 mi0.75 mi14458+774483+314483+3112180(Top 46%)3543(Top 31%)3543(Top 294%)
23M23.00 mi1.25 mi14260+1984389+944389+9411588(Top 44%)3305(Top 29%)3305(Top 274%)
24M24.00 mi1.00 mi14105+1554312+774312+7711278(Top 42%)3240(Top 28%)3240(Top 268%)
40K24.85 mi0.85 mi14033+724294+184294+1812873(Top 48%)4146(Top 36%)4146(Top 343%)
25.2M25.20 mi0.35 mi14007+264283+114283+1113070(Top 49%)4268(Top 37%)4268(Top 354%)
Finish26.22 mi1.02 mi14019-124308-254308-2514368(Top 54%)4930(Top 43%)4930(Top 408%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

16524

Females

5603

F50-54

5603

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

17066

Females

5907

F50-54

5907

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

16524

Females

5603

F50-54

5603

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

14891

Females

4640

F50-54

4640

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

16670

Females

5681

F50-54

5681

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

13640

Females

4007

F50-54

4007

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12005

Females

3192

F50-54

3192

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10562

Females

2529

F50-54

2529

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10119

Females

2452

F50-54

2452

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12180

Females

3543

F50-54

3543

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

11588

Females

3305

F50-54

3305

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11278

Females

3240

F50-54

3240

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12873

Females

4146

F50-54

4146

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13070

Females

4268

F50-54

4268

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14368

Females

4930

F50-54

4930

Passing Analysis

Category:
Athletes Passed
3581
Passed By
676
Net Change
+2905
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16924
5K → 10K295308-13#16924#16937
10K → 15K277137+140#16937#16797
15K → 20K50714+493#16797#16304
20K → Half3646-10#16304#16314
Half → 25K4597+452#16314#15862
25K → 30K7061+705#15862#15157
30K → 20M3211+320#15157#14837
20M → 21M3053+302#14837#14535
21M → 35K869+77#14535#14458
35K → 23M20911+198#14458#14260
23M → 24M1605+155#14260#14105
24M → 40K10836+72#14105#14033
40K → 25.2M4418+26#14033#14007
25.2M → Finish6880-12#14007#14019
TOTALS3581676+2905
📊

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