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BOSTON MARATHON 2025

Amy Biondi-Huffman

Bib: 23670•F

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:58
Rank: #19068
Start → 5K
25:58 | 8:21/mi
10K· 6.21 mi
52:34
Rank: #19599 (-531)
5K → 10K
26:36 | 8:34/mi
15K· 9.32 mi
1:20:44
Rank: #20548 (-949)
10K → 15K
28:10 | 9:04/mi
20K· 12.43 mi
1:50:35
Rank: #21445 (-897)
15K → 20K
29:51 | 9:36/mi
Half· 13.11 mi
1:56:44
Rank: #21459 (-14)
20K → Half
6:09 | 9:01/mi
25K· 15.53 mi
2:20:21
Rank: #21721 (-262)
Half → 25K
23:37 | 9:44/mi
30K· 18.64 mi
2:51:44
Rank: #21819 (-98)
25K → 30K
31:23 | 10:06/mi
20M
3:05:29
Rank: #21774 (+45)
30K → 20M
13:45 | 10:07/mi
21M
3:16:38
Rank: #21766 (+8)
20M → 21M
11:09 | 11:09/mi
35K· 21.75 mi
3:23:35
Rank: #21681 (+85)
21M → 35K
6:57 | 9:17/mi
23M
3:36:13
Rank: #21626 (+55)
35K → 23M
12:38 | 10:05/mi
24M
3:45:45
Rank: #21535 (+91)
23M → 24M
9:32 | 9:32/mi
40K· 24.85 mi
3:54:26
Rank: #21500 (+35)
24M → 40K
8:41 | 10:09/mi
25.2M
3:58:24
Rank: #21511 (-11)
40K → 25.2M
3:58 | 11:30/mi
Finish· 26.22 mi
4:08:11
Rank: #21494 (+17)
25.2M → Finish
9:47 | 9:36/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:44
Pace8:54 /mi
2nd Half
Distance13.11 mi
Time2:11:27
Pace10:02 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:4525:588:2125:58
8:21
-
10K
6.21 mi11:51:2152:348:2826:36
8:34
+0:13
15K
9.32 mi12:19:311:20:448:4028:10
9:04
+0:30
20K
12.43 mi12:49:221:50:358:5429:51
9:36
+0:32
Half
13.11 mi12:55:311:56:448:546:09
9:01
-0:35
25K
15.53 mi13:19:082:20:219:0223:37
9:44
+0:43
30K
18.64 mi13:50:312:51:449:1331:23
10:06
+0:22
20M
20.00 mi14:04:163:05:299:1613:45
10:07
+0:01
21M
21.00 mi14:15:253:16:389:2211:09
11:09
+1:02
35K
21.75 mi14:22:223:23:359:226:57
9:17
-1:52
23M
23.00 mi14:35:003:36:139:2412:38
10:05
+0:48
24M
24.00 mi14:44:323:45:459:249:32
9:32
-0:33
40K
24.85 mi14:53:133:54:269:268:41
10:09
+0:37
25.2M
25.20 mi14:57:113:58:249:283:58
11:30
+1:21
Finish
26.22 mi15:06:584:08:119:289:47
9:36
-1:54

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

8:21 /mi

Average Pace

9:28 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:53

35% of race

Time at Steady Pace

1:19:44

32% of race

Time at Slower Pace

1:21:34

33% of race

Average Pace: 9:28 /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 mi11:24:4525:588:2125:58
8:21
#19068
10K
6.21 mi11:51:2152:348:2826:36
8:34
#19599
15K
9.32 mi12:19:311:20:448:4028:10
9:04
#20548
20K
12.43 mi12:49:221:50:358:5429:51
9:36
#21445
Half
13.11 mi12:55:311:56:448:546:09
9:01
#21459
25K
15.53 mi13:19:082:20:219:0223:37
9:44
#21721
30K
18.64 mi13:50:312:51:449:1331:23
10:06
#21819
20M
20.00 mi14:04:163:05:299:1613:45
10:07
#21774
21M
21.00 mi14:15:253:16:389:2211:09
11:09
#21766
35K
21.75 mi14:22:223:23:359:226:57
9:17
#21681
23M
23.00 mi14:35:003:36:139:2412:38
10:05
#21626
24M
24.00 mi14:44:323:45:459:249:32
9:32
#21535
40K
24.85 mi14:53:133:54:269:268:41
10:09
#21500
25.2M
25.20 mi14:57:113:58:249:283:58
11:30
#21511
Finish
26.22 mi15:06:584:08:119:289:47
9:36
#21494
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi190686950695022317(Top 79%)8735(Top 71%)8735(Top 879%)
10K6.21 mi3.10 mi19599-5317243-2937243-29320166(Top 71%)7558(Top 62%)7558(Top 760%)
15K9.32 mi3.11 mi20548-9497782-5397782-53922317(Top 79%)8735(Top 71%)8735(Top 879%)
20K12.43 mi3.11 mi21445-8978286-5048286-50423232(Top 82%)9262(Top 76%)9262(Top 932%)
Half13.11 mi0.68 mi21459-148292-68292-621912(Top 77%)8548(Top 70%)8548(Top 860%)
25K15.53 mi2.42 mi21721-2628455-1638455-16322607(Top 80%)8982(Top 73%)8982(Top 904%)
30K18.64 mi3.11 mi21819-988523-688523-6821911(Top 77%)8730(Top 71%)8730(Top 878%)
20M20.00 mi1.36 mi21774+458512+118512+1121349(Top 75%)8548(Top 70%)8548(Top 860%)
21M21.00 mi1.00 mi21766+88536-248536-2421780(Top 77%)8852(Top 72%)8852(Top 891%)
35K21.75 mi0.75 mi21681+858498+388498+3819569(Top 69%)7761(Top 63%)7761(Top 781%)
23M23.00 mi1.25 mi21626+558506-88506-820790(Top 73%)8447(Top 69%)8447(Top 850%)
24M24.00 mi1.00 mi21535+918474+328474+3219762(Top 70%)7969(Top 65%)7969(Top 802%)
40K24.85 mi0.85 mi21500+358474847420964(Top 74%)8650(Top 71%)8650(Top 870%)
25.2M25.20 mi0.35 mi21511-118488-148488-1422076(Top 78%)9186(Top 75%)9186(Top 924%)
Finish26.22 mi1.02 mi21494+178494-68494-621567(Top 76%)8943(Top 73%)8943(Top 900%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

22317

Females

8735

F55-59

8735

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

20166

Females

7558

F55-59

7558

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

22317

Females

8735

F55-59

8735

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

23232

Females

9262

F55-59

9262

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

21912

Females

8548

F55-59

8548

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

22607

Females

8982

F55-59

8982

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

21911

Females

8730

F55-59

8730

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

21349

Females

8548

F55-59

8548

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

21780

Females

8852

F55-59

8852

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

19569

Females

7761

F55-59

7761

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

20790

Females

8447

F55-59

8447

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

19762

Females

7969

F55-59

7969

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

20964

Females

8650

F55-59

8650

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22076

Females

9186

F55-59

9186

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

21567

Females

8943

F55-59

8943

Passing Analysis

Category:
Athletes Passed
1097
Passed By
3523
Net Change
-2426
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19068
5K → 10K90621-531#19068#19599
10K → 15K43992-949#19599#20548
15K → 20K50947-897#20548#21445
20K → Half2438-14#21445#21459
Half → 25K78340-262#21459#21721
25K → 30K163261-98#21721#21819
30K → 20M11166+45#21819#21774
20M → 21M8577+8#21774#21766
21M → 35K916+85#21766#21681
35K → 23M11156+55#21681#21626
23M → 24M10514+91#21626#21535
24M → 40K6530+35#21535#21500
40K → 25.2M2132-11#21500#21511
25.2M → Finish6043+17#21511#21494
TOTALS10973523-2426
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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