Boston Marathon logo
BOSTON MARATHON 2025

Kathryn Punzak

Bib: 26821•F

MA

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

⏱️ 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
9:21/mi
29:02
↑ 97↓ 3451.5%
10K· 6.21 mi
9:15/mi
57:47
↑ 79↓ 1380.4%
15K· 9.32 mi
9:09/mi
1:26:13
↑ 67↓ 78
20K· 12.43 mi
8:54/mi
1:53:51
↑ 106↓ 860.1%
Half· 13.11 mi
8:37/mi
1:59:44
↑ 19↓ 370.5%
25K· 15.53 mi
8:41/mi
2:20:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:58/mi
2:48:39
↑ 181↓ 1480.2%
20M
9:27/mi
3:01:30
↑ 64↓ 500.2%
21M
9:49/mi
3:11:19
↑ 106↓ 241.6%
35K· 21.75 mi
8:41/mi
3:17:49
↑ 17↓ 861.7%
23M
9:19/mi
3:29:29
↑ 23↓ 630.6%
24M
9:04/mi
3:38:33
↓ 821.3%
40K· 24.85 mi
10:33/mi
3:47:34
↓ 200.3%
25.2M
9:57/mi
3:51:00
↑ 13↓ 160.2%
Finish· 26.22 mi
8:14/mi
3:59:23
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:59:44
Pace9:08 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:59:39
Pace9:08 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:4029:029:2129:02
9:21
-
10K
6.21 mi12:21:2557:479:1828:45
9:15
-0:06
15K
9.32 mi12:49:511:26:139:1528:26
9:09
-0:06
20K
12.43 mi13:17:291:53:519:1027:38
8:54
-0:15
Half
13.11 mi13:23:221:59:449:085:53
8:37
-0:17
25K
15.53 mi13:44:252:20:479:0421:03
8:41
+0:04
30K
18.64 mi14:12:172:48:399:0327:52
8:58
+0:17
20M
20.00 mi14:25:083:01:309:0412:51
9:27
+0:29
21M
21.00 mi14:34:573:11:199:079:49
9:49
+0:22
35K
21.75 mi14:41:273:17:499:066:30
8:41
-1:08
23M
23.00 mi14:53:073:29:299:0611:40
9:19
+0:38
24M
24.00 mi15:02:113:38:339:069:04
9:04
-0:15
40K
24.85 mi15:11:123:47:349:099:01
10:33
+1:29
25.2M
25.20 mi15:14:383:51:009:103:26
9:57
-0:36
Finish
26.22 mi15:23:013:59:239:088:23
8:14
-1:43

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

8:14 /mi

Average Pace

9:08 /mi

Slowest Pace

10:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

41:49

17% of race

Time at Steady Pace

2:42:27

68% of race

Time at Slower Pace

35:07

15% of race

Average Pace: 9:08 /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 mi11:52:4029:029:2129:02
9:21
#23719
10K
6.21 mi12:21:2557:479:1828:45
9:15
#23566
15K
9.32 mi12:49:511:26:139:1528:26
9:09
#23272
20K
12.43 mi13:17:291:53:519:1027:38
8:54
#22630
Half
13.11 mi13:23:221:59:449:085:53
8:37
#22496
25K
15.53 mi13:44:252:20:479:0421:03
8:41
#21847
30K
18.64 mi14:12:172:48:399:0327:52
8:58
#21096
20M
20.00 mi14:25:083:01:309:0412:51
9:27
#20913
21M
21.00 mi14:34:573:11:199:079:49
9:49
#20682
35K
21.75 mi14:41:273:17:499:066:30
8:41
#20557
23M
23.00 mi14:53:073:29:299:0611:40
9:19
#20415
24M
24.00 mi15:02:113:38:339:069:04
9:04
#20319
40K
24.85 mi15:11:123:47:349:099:01
10:33
#20431
25.2M
25.20 mi15:14:383:51:009:103:26
9:57
#20392
Finish
26.22 mi15:23:013:59:239:088:23
8:14
#20233
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi237199539953922668(Top 80%)8927(Top 73%)8927(Top 163%)
10K6.21 mi3.10 mi23566+1539462+779462+7723373(Top 82%)9337(Top 76%)9337(Top 171%)
15K9.32 mi3.11 mi23272+2949275+1879275+18722668(Top 80%)8927(Top 73%)8927(Top 163%)
20K12.43 mi3.11 mi22630+6428923+3528923+35220447(Top 72%)7739(Top 63%)7739(Top 142%)
Half13.11 mi0.68 mi22496+1348861+628861+6219990(Top 70%)7478(Top 61%)7478(Top 137%)
25K15.53 mi2.42 mi21847+6498528+3338528+33318310(Top 64%)6601(Top 54%)6601(Top 121%)
30K18.64 mi3.11 mi21096+7518136+3928136+39217535(Top 62%)6330(Top 52%)6330(Top 116%)
20M20.00 mi1.36 mi20913+1838050+868050+8619001(Top 67%)7260(Top 59%)7260(Top 133%)
21M21.00 mi1.00 mi20682+2317950+1007950+10017589(Top 62%)6588(Top 54%)6588(Top 120%)
35K21.75 mi0.75 mi20557+1257896+547896+5416686(Top 59%)6182(Top 51%)6182(Top 113%)
23M23.00 mi1.25 mi20415+1427841+557841+5517881(Top 63%)6938(Top 57%)6938(Top 127%)
24M24.00 mi1.00 mi20319+967811+307811+3017740(Top 62%)6906(Top 56%)6906(Top 126%)
40K24.85 mi0.85 mi20431-1127885-747885-7422045(Top 78%)9217(Top 75%)9217(Top 169%)
25.2M25.20 mi0.35 mi20392+397869+167869+1616916(Top 60%)6570(Top 54%)6570(Top 120%)
Finish26.22 mi1.02 mi20233+1597799+707799+7014493(Top 51%)5216(Top 43%)5216(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

22668

Females

8927

F18-39

8927

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

23373

Females

9337

F18-39

9337

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

22668

Females

8927

F18-39

8927

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20447

Females

7739

F18-39

7739

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19990

Females

7478

F18-39

7478

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18310

Females

6601

F18-39

6601

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17535

Females

6330

F18-39

6330

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

19001

Females

7260

F18-39

7260

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

17589

Females

6588

F18-39

6588

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

16686

Females

6182

F18-39

6182

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

17881

Females

6938

F18-39

6938

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17740

Females

6906

F18-39

6906

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22045

Females

9217

F18-39

9217

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16916

Females

6570

F18-39

6570

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14493

Females

5216

F18-39

5216

Passing Analysis

Category:
Athletes Passed
3945
Passed By
459
Net Change
+3486
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23719
5K → 10K321168+153#23719#23566
10K → 15K35662+294#23566#23272
15K → 20K6431+642#23272#22630
20K → Half1373+134#22630#22496
Half → 25K6523+649#22496#21847
25K → 30K7576+751#21847#21096
30K → 20M19916+183#21096#20913
20M → 21M2398+231#20913#20682
21M → 35K1261+125#20682#20557
35K → 23M15816+142#20557#20415
23M → 24M11115+96#20415#20319
24M → 40K33145-112#20319#20431
40K → 25.2M478+39#20431#20392
25.2M → Finish1667+159#20392#20233
TOTALS3945459+3486
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing