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BOSTON MARATHON 2025

Grace Penna

Bib: 31969•F

MA

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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
32:17
Rank: #26516
Start → 5K
10:23/mi
32:17 split
10K· 6.21 mi
1:05:53
Rank: #26687 (-171)
5K → 10K
10:49/mi
33:36 split
15K· 9.32 mi
1:41:10
Rank: #26878 (-191)
10K → 15K
11:21/mi
35:17 split
20K· 12.43 mi
2:19:17
Rank: #27045 (-167)
15K → 20K
12:16/mi
38:07 split
Half· 13.11 mi
2:27:55
Rank: #27111 (-66)
20K → Half
12:39/mi
8:38 split
25K· 15.53 mi
3:00:19
Rank: #27216 (-105)
Half → 25K
13:22/mi
32:24 split
30K· 18.64 mi
3:44:57
Rank: #27360 (-144)
25K → 30K
14:22/mi
44:38 split
20M
4:03:51
Rank: #27363 (-3)
30K → 20M
13:54/mi
18:54 split
21M
4:21:08
Rank: #27458 (-95)
20M → 21M
17:17/mi
17:17 split
35K· 21.75 mi
4:30:50
Rank: #27456 (+2)
21M → 35K
12:58/mi
9:42 split
23M
4:48:35
Rank: #27477 (-21)
35K → 23M
14:11/mi
17:45 split
24M
5:04:02
Rank: #27544 (-67)
23M → 24M
15:27/mi
15:27 split
40K· 24.85 mi
5:14:09
Rank: #27488 (+56)
24M → 40K
11:50/mi
10:07 split
25.2M
5:18:54
Rank: #27473 (+15)
40K → 25.2M
13:46/mi
4:45 split
Finish· 26.22 mi
5:31:02
Rank: #27454 (+19)
25.2M → Finish
11:54/mi
12:08 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:27:55
Pace11:17 /mi
2nd Half
Distance13.11 mi
Time3:03:07
Pace13:58 /mi
📊Positive Split: 23.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:2132:1710:2332:17
10:23
-
10K
6.21 mi12:29:571:05:5310:3633:36
10:49
+0:26
15K
9.32 mi13:05:141:41:1010:5135:17
11:21
+0:32
20K
12.43 mi13:43:212:19:1711:1238:07
12:16
+0:55
Half
13.11 mi13:51:592:27:5511:178:38
12:39
+0:23
25K
15.53 mi14:24:233:00:1911:3632:24
13:22
+0:43
30K
18.64 mi15:09:013:44:5712:0444:38
14:22
+1:00
20M
20.00 mi15:27:554:03:5112:1218:54
13:54
-0:28
21M
21.00 mi15:45:124:21:0812:2617:17
17:17
+3:23
35K
21.75 mi15:54:544:30:5012:279:42
12:58
-4:19
23M
23.00 mi16:12:394:48:3512:3317:45
14:11
+1:13
24M
24.00 mi16:28:065:04:0212:4015:27
15:27
+1:16
40K
24.85 mi16:38:135:14:0912:3810:07
11:50
-3:37
25.2M
25.20 mi16:42:585:18:5412:394:45
13:46
+1:56
Finish
26.22 mi16:55:065:31:0212:3812:08
11:54
-1:52

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

10:23 /mi

Average Pace

12:38 /mi

Slowest Pace

17:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:25

37% of race

Time at Steady Pace

1:33:36

28% of race

Time at Slower Pace

1:54:01

34% of race

Average Pace: 12:38 /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 mi11:56:2132:1710:2332:17
10:23
#26516
10K
6.21 mi12:29:571:05:5310:3633:36
10:49
#26687
15K
9.32 mi13:05:141:41:1010:5135:17
11:21
#26878
20K
12.43 mi13:43:212:19:1711:1238:07
12:16
#27045
Half
13.11 mi13:51:592:27:5511:178:38
12:39
#27111
25K
15.53 mi14:24:233:00:1911:3632:24
13:22
#27216
30K
18.64 mi15:09:013:44:5712:0444:38
14:22
#27360
20M
20.00 mi15:27:554:03:5112:1218:54
13:54
#27363
21M
21.00 mi15:45:124:21:0812:2617:17
17:17
#27458
35K
21.75 mi15:54:544:30:5012:279:42
12:58
#27456
23M
23.00 mi16:12:394:48:3512:3317:45
14:11
#27477
24M
24.00 mi16:28:065:04:0212:4015:27
15:27
#27544
40K
24.85 mi16:38:135:14:0912:3810:07
11:50
#27488
25.2M
25.20 mi16:42:585:18:5412:394:45
13:46
#27473
Finish
26.22 mi16:55:065:31:0212:3812:08
11:54
#27454
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26516110501105027093(Top 95%)11433(Top 93%)11433(Top 209%)
10K6.21 mi3.10 mi26687-17111153-10311153-10326801(Top 94%)11236(Top 92%)11236(Top 205%)
15K9.32 mi3.11 mi26878-19111283-13011283-13027093(Top 95%)11433(Top 93%)11433(Top 209%)
20K12.43 mi3.11 mi27045-16711391-10811391-10827328(Top 96%)11597(Top 95%)11597(Top 212%)
Half13.11 mi0.68 mi27111-6611436-4511436-4527832(Top 98%)11905(Top 97%)11905(Top 218%)
25K15.53 mi2.42 mi27216-10511508-7211508-7227538(Top 97%)11740(Top 96%)11740(Top 215%)
30K18.64 mi3.11 mi27360-14411623-11511623-11527742(Top 98%)11913(Top 97%)11913(Top 218%)
20M20.00 mi1.36 mi27363-311626-311626-327208(Top 96%)11665(Top 95%)11665(Top 213%)
21M21.00 mi1.00 mi27458-9511686-6011686-6028190(Top 99%)12143(Top 99%)12143(Top 222%)
35K21.75 mi0.75 mi27456+211689-311689-326924(Top 95%)11553(Top 94%)11553(Top 211%)
23M23.00 mi1.25 mi27477-2111705-1611705-1627451(Top 97%)11832(Top 97%)11832(Top 216%)
24M24.00 mi1.00 mi27544-6711752-4711752-4728141(Top 99%)12150(Top 99%)12150(Top 222%)
40K24.85 mi0.85 mi27488+5611718+3411718+3424665(Top 87%)10516(Top 86%)10516(Top 192%)
25.2M25.20 mi0.35 mi27473+1511710+811710+825999(Top 92%)11187(Top 91%)11187(Top 205%)
Finish26.22 mi1.02 mi27454+1911705+511705+526684(Top 94%)11467(Top 94%)11467(Top 210%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21story building
+97ft-345ft

Overall

27093

Females

11433

F18-39

11433

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

26801

Females

11236

F18-39

11236

10K→15K

6.2 - 9.3 mi

Top 95%
×3story building
+67ft-78ft

Overall

27093

Females

11433

F18-39

11433

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

27328

Females

11597

F18-39

11597

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

27832

Females

11905

F18-39

11905

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

27538

Females

11740

F18-39

11740

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

27742

Females

11913

F18-39

11913

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

27208

Females

11665

F18-39

11665

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

28190

Females

12143

F18-39

12143

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

26924

Females

11553

F18-39

11553

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

27451

Females

11832

F18-39

11832

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

28141

Females

12150

F18-39

12150

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24665

Females

10516

F18-39

10516

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

25999

Females

11187

F18-39

11187

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

26684

Females

11467

F18-39

11467

Passing Analysis

Category:
Athletes Passed
475
Passed By
1413
Net Change
-938
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26516
5K → 10K102273-171#26516#26687
10K → 15K66257-191#26687#26878
15K → 20K57224-167#26878#27045
20K → Half470-66#27045#27111
Half → 25K44149-105#27111#27216
25K → 30K39183-144#27216#27360
30K → 20M2629-3#27360#27363
20M → 21M5100-95#27363#27458
21M → 35K1210+2#27458#27456
35K → 23M1738-21#27456#27477
23M → 24M471-67#27477#27544
24M → 40K582+56#27544#27488
40K → 25.2M172+15#27488#27473
25.2M → Finish245+19#27473#27454
TOTALS4751413-938
📊

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