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BOSTON MARATHON 2025

Harriet Frechtling

Bib: 16360•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:26
Rank: #15395
Start → 5K
24:26 | 7:52/mi
10K· 6.21 mi
48:47
Rank: #15265 (+130)
5K → 10K
24:21 | 7:50/mi
15K· 9.32 mi
1:14:05
Rank: #15909 (-644)
10K → 15K
25:18 | 8:09/mi
20K· 12.43 mi
1:40:49
Rank: #16778 (-869)
15K → 20K
26:44 | 8:36/mi
Half· 13.11 mi
1:46:44
Rank: #16970 (-192)
20K → Half
5:55 | 8:40/mi
25K· 15.53 mi
2:07:58
Rank: #17199 (-229)
Half → 25K
21:14 | 8:45/mi
30K· 18.64 mi
2:36:20
Rank: #17388 (-189)
25K → 30K
28:22 | 9:08/mi
20M
2:49:06
Rank: #17491 (-103)
30K → 20M
12:46 | 9:24/mi
21M
2:59:53
Rank: #17794 (-303)
20M → 21M
10:47 | 10:47/mi
35K· 21.75 mi
3:06:38
Rank: #17811 (-17)
21M → 35K
6:45 | 9:01/mi
23M
3:18:20
Rank: #17810 (+1)
35K → 23M
11:42 | 9:21/mi
24M
3:27:37
Rank: #17849 (-39)
23M → 24M
9:17 | 9:17/mi
40K· 24.85 mi
3:35:42
Rank: #17881 (-32)
24M → 40K
8:05 | 9:27/mi
25.2M
3:39:03
Rank: #17847 (+34)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:47:56
Rank: #17818 (+29)
25.2M → Finish
8:53 | 8:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:44
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time2:01:12
Pace9:15 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:3524:267:5224:26
7:52
-
10K
6.21 mi11:22:5648:477:5124:21
7:50
-0:02
15K
9.32 mi11:48:141:14:057:5725:18
8:09
+0:19
20K
12.43 mi12:14:581:40:498:0726:44
8:36
+0:27
Half
13.11 mi12:20:531:46:448:085:55
8:40
+0:04
25K
15.53 mi12:42:072:07:588:1421:14
8:45
+0:05
30K
18.64 mi13:10:292:36:208:2328:22
9:08
+0:23
20M
20.00 mi13:23:152:49:068:2712:46
9:24
+0:16
21M
21.00 mi13:34:022:59:538:3410:47
10:47
+1:23
35K
21.75 mi13:40:473:06:388:356:45
9:01
-1:46
23M
23.00 mi13:52:293:18:208:3711:42
9:21
+0:20
24M
24.00 mi14:01:463:27:378:399:17
9:17
-0:04
40K
24.85 mi14:09:513:35:428:418:05
9:27
+0:10
25.2M
25.20 mi14:13:123:39:038:423:21
9:43
+0:16
Finish
26.22 mi14:22:053:47:568:428:53
8:43
-1:00

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

8:42 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:49

44% of race

Time at Steady Pace

1:32:08

40% of race

Time at Slower Pace

34:59

15% of race

Average Pace: 8:42 /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 mi10:58:3524:267:5224:26
7:52
#15395
10K
6.21 mi11:22:5648:477:5124:21
7:50
#15265
15K
9.32 mi11:48:141:14:057:5725:18
8:09
#15909
20K
12.43 mi12:14:581:40:498:0726:44
8:36
#16778
Half
13.11 mi12:20:531:46:448:085:55
8:40
#16970
25K
15.53 mi12:42:072:07:588:1421:14
8:45
#17199
30K
18.64 mi13:10:292:36:208:2328:22
9:08
#17388
20M
20.00 mi13:23:152:49:068:2712:46
9:24
#17491
21M
21.00 mi13:34:022:59:538:3410:47
10:47
#17794
35K
21.75 mi13:40:473:06:388:356:45
9:01
#17811
23M
23.00 mi13:52:293:18:208:3711:42
9:21
#17810
24M
24.00 mi14:01:463:27:378:399:17
9:17
#17849
40K
24.85 mi14:09:513:35:428:418:05
9:27
#17881
25.2M
25.20 mi14:13:123:39:038:423:21
9:43
#17847
Finish
26.22 mi14:22:053:47:568:428:53
8:43
#17818
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi153954780478017053(Top 60%)5765(Top 47%)5765(Top 105%)
10K6.21 mi3.10 mi15265+1304704+764704+7615181(Top 53%)4656(Top 38%)4656(Top 85%)
15K9.32 mi3.11 mi15909-6445089-3855089-38517053(Top 60%)5765(Top 47%)5765(Top 105%)
20K12.43 mi3.11 mi16778-8695608-5195608-51918884(Top 66%)6842(Top 56%)6842(Top 125%)
Half13.11 mi0.68 mi16970-1925729-1215729-12120208(Top 71%)7581(Top 62%)7581(Top 139%)
25K15.53 mi2.42 mi17199-2295883-1545883-15418719(Top 66%)6823(Top 56%)6823(Top 125%)
30K18.64 mi3.11 mi17388-1896053-1706053-17018316(Top 64%)6750(Top 55%)6750(Top 123%)
20M20.00 mi1.36 mi17491-1036145-926145-9218729(Top 66%)7119(Top 58%)7119(Top 130%)
21M21.00 mi1.00 mi17794-3036320-1756320-17520788(Top 73%)8333(Top 68%)8333(Top 152%)
35K21.75 mi0.75 mi17811-176339-196339-1918356(Top 65%)7099(Top 58%)7099(Top 130%)
23M23.00 mi1.25 mi17810+16388-496388-4918005(Top 63%)6985(Top 57%)6985(Top 128%)
24M24.00 mi1.00 mi17849-396451-636451-6318755(Top 66%)7412(Top 61%)7412(Top 136%)
40K24.85 mi0.85 mi17881-326479-286479-2818543(Top 65%)7399(Top 61%)7399(Top 135%)
25.2M25.20 mi0.35 mi17847+346472+76472+715768(Top 56%)5979(Top 49%)5979(Top 109%)
Finish26.22 mi1.02 mi17818+296477-56477-517605(Top 62%)6873(Top 56%)6873(Top 126%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

17053

Females

5765

F18-39

5765

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

15181

Females

4656

F18-39

4656

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

17053

Females

5765

F18-39

5765

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

18884

Females

6842

F18-39

6842

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

20208

Females

7581

F18-39

7581

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

18719

Females

6823

F18-39

6823

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

18316

Females

6750

F18-39

6750

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

18729

Females

7119

F18-39

7119

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

20788

Females

8333

F18-39

8333

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

18356

Females

7099

F18-39

7099

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

18005

Females

6985

F18-39

6985

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

18755

Females

7412

F18-39

7412

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18543

Females

7399

F18-39

7399

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15768

Females

5979

F18-39

5979

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17605

Females

6873

F18-39

6873

Passing Analysis

Category:
Athletes Passed
1286
Passed By
3709
Net Change
-2423
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15395
5K → 10K368238+130#15395#15265
10K → 15K66710-644#15265#15909
15K → 20K48917-869#15909#16778
20K → Half5197-192#16778#16970
Half → 25K98327-229#16970#17199
25K → 30K157346-189#17199#17388
30K → 20M82185-103#17388#17491
20M → 21M40343-303#17491#17794
21M → 35K6178-17#17794#17811
35K → 23M106105+1#17811#17810
23M → 24M70109-39#17810#17849
24M → 40K4678-32#17849#17881
40K → 25.2M5117+34#17881#17847
25.2M → Finish8859+29#17847#17818
TOTALS12863709-2423
📊

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