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BOSTON MARATHON 2023

Amy Biondi-Huffman

Bib: 15594•F

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
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
8:12/mi
25:29
↑ 97↓ 3451.5%
10K· 6.21 mi
8:12/mi
50:58
↑ 79↓ 1380.4%
15K· 9.32 mi
8:39/mi
1:17:51
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:46:10
↑ 106↓ 860.1%
Half· 13.11 mi
9:07/mi
1:52:22
↑ 19↓ 370.5%
25K· 15.53 mi
9:07/mi
2:14:28
↑ 66↓ 880.2%
30K· 18.64 mi
9:29/mi
2:43:57
↑ 181↓ 1480.2%
20M
9:29/mi
2:56:51
↑ 64↓ 500.2%
21M
11:09/mi
3:08:00
↑ 106↓ 241.6%
35K· 21.75 mi
9:35/mi
3:15:11
↑ 17↓ 861.7%
23M
9:35/mi
3:27:11
↑ 23↓ 630.6%
24M
9:34/mi
3:36:45
↓ 821.3%
40K· 24.85 mi
10:39/mi
3:45:51
↓ 200.3%
25.2M
12:31/mi
3:50:10
↑ 13↓ 160.2%
Finish· 26.22 mi
10:07/mi
4:00:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:22
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time2:08:07
Pace9:46 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:2325:298:1225:29
8:12
-
10K
6.21 mi11:21:5250:588:1225:29
8:12
0:00
15K
9.32 mi11:48:451:17:518:2126:53
8:39
+0:27
20K
12.43 mi12:17:041:46:108:3328:19
9:07
+0:28
Half
13.11 mi12:23:161:52:228:346:13
9:07
0:00
25K
15.53 mi12:45:222:14:288:3922:06
9:07
0:00
30K
18.64 mi13:14:512:43:578:4829:29
9:29
+0:22
20M
20.00 mi13:27:452:56:518:5112:54
9:29
0:00
21M
21.00 mi13:38:543:08:008:5711:09
11:09
+1:40
35K
21.75 mi13:46:053:15:118:587:11
9:35
-1:34
23M
23.00 mi13:58:053:27:119:0012:00
9:35
0:00
24M
24.00 mi14:07:393:36:459:029:34
9:34
-0:01
40K
24.85 mi14:16:453:45:519:059:06
10:39
+1:05
25.2M
25.20 mi14:21:043:50:109:084:19
12:31
+1:52
Finish
26.22 mi14:31:234:00:299:1110:19
10:07
-2:24

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

8:12 /mi

Average Pace

9:11 /mi

Slowest Pace

12:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:17:51

32% of race

Time at Steady Pace

2:07:45

53% of race

Time at Slower Pace

34:53

15% of race

Average Pace: 9:10 /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 mi10:56:2325:298:1225:29
8:12
#15505
10K
6.21 mi11:21:5250:588:1225:29
8:12
#15853
15K
9.32 mi11:48:451:17:518:2126:53
8:39
#16872
20K
12.43 mi12:17:041:46:108:3328:19
9:07
#17847
Half
13.11 mi12:23:161:52:228:346:13
9:07
#18028
25K
15.53 mi12:45:222:14:288:3922:06
9:07
#18312
30K
18.64 mi13:14:512:43:578:4829:29
9:29
#18552
20M
20.00 mi13:27:452:56:518:5112:54
9:29
#18568
21M
21.00 mi13:38:543:08:008:5711:09
11:09
#18821
35K
21.75 mi13:46:053:15:118:587:11
9:35
#18892
23M
23.00 mi13:58:053:27:119:0012:00
9:35
#18883
24M
24.00 mi14:07:393:36:459:029:34
9:34
#18914
40K
24.85 mi14:16:453:45:519:059:06
10:39
#19075
25.2M
25.20 mi14:21:043:50:109:084:19
12:31
#19208
Finish
26.22 mi14:31:234:00:299:1110:19
10:07
#19397
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi155054973497318750(Top 70%)6953(Top 61%)6953(Top 576%)
10K6.21 mi3.10 mi15853-3485193-2205193-22016286(Top 61%)5452(Top 48%)5452(Top 452%)
15K9.32 mi3.11 mi16872-10195839-6465839-64618750(Top 70%)6953(Top 61%)6953(Top 576%)
20K12.43 mi3.11 mi17847-9756434-5956434-59520191(Top 76%)7776(Top 68%)7776(Top 644%)
Half13.11 mi0.68 mi18028-1816531-976531-9720838(Top 78%)8160(Top 71%)8160(Top 676%)
25K15.53 mi2.42 mi18312-2846715-1846715-18419470(Top 73%)7414(Top 65%)7414(Top 614%)
30K18.64 mi3.11 mi18552-2406899-1846899-18419409(Top 73%)7423(Top 65%)7423(Top 615%)
20M20.00 mi1.36 mi18568-166910-116910-1118813(Top 71%)7204(Top 63%)7204(Top 597%)
21M21.00 mi1.00 mi18821-2537067-1577067-15721151(Top 79%)8536(Top 75%)8536(Top 707%)
35K21.75 mi0.75 mi18892-717116-497116-4920140(Top 76%)8022(Top 70%)8022(Top 665%)
23M23.00 mi1.25 mi18883+97121-57121-518695(Top 70%)7242(Top 63%)7242(Top 600%)
24M24.00 mi1.00 mi18914-317147-267147-2619452(Top 73%)7691(Top 67%)7691(Top 637%)
40K24.85 mi0.85 mi19075-1617245-987245-9821569(Top 81%)8920(Top 78%)8920(Top 739%)
25.2M25.20 mi0.35 mi19208-1337321-767321-7623312(Top 88%)9825(Top 86%)9825(Top 814%)
Finish26.22 mi1.02 mi19397-1897436-1157436-11522093(Top 83%)9159(Top 80%)9159(Top 759%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

18750

Females

6953

F50-54

6953

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

16286

Females

5452

F50-54

5452

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

18750

Females

6953

F50-54

6953

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

20191

Females

7776

F50-54

7776

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

20838

Females

8160

F50-54

8160

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

19470

Females

7414

F50-54

7414

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19409

Females

7423

F50-54

7423

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

18813

Females

7204

F50-54

7204

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

21151

Females

8536

F50-54

8536

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20140

Females

8022

F50-54

8022

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

18695

Females

7242

F50-54

7242

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

19452

Females

7691

F50-54

7691

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21569

Females

8920

F50-54

8920

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23312

Females

9825

F50-54

9825

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

22093

Females

9159

F50-54

9159

Passing Analysis

Category:
Athletes Passed
693
Passed By
4585
Net Change
-3892
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15505
5K → 10K166514-348#15505#15853
10K → 15K171036-1019#15853#16872
15K → 20K321007-975#16872#17847
20K → Half7188-181#17847#18028
Half → 25K57341-284#18028#18312
25K → 30K111351-240#18312#18552
30K → 20M84100-16#18552#18568
20M → 21M31284-253#18568#18821
21M → 35K2798-71#18821#18892
35K → 23M7869+9#18892#18883
23M → 24M5081-31#18883#18914
24M → 40K16177-161#18914#19075
40K → 25.2M6139-133#19075#19208
25.2M → Finish11200-189#19208#19397
TOTALS6934585-3892
📊

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