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BOSTON MARATHON 2025

Katarzyna West

Bib: 23723•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:10
Rank: #22710
Start → 5K
28:10 | 9:04/mi
10K· 6.21 mi
57:07
Rank: #23179 (-469)
5K → 10K
28:57 | 9:19/mi
15K· 9.32 mi
1:25:09
Rank: #22867 (+312)
10K → 15K
28:02 | 9:01/mi
20K· 12.43 mi
1:53:37
Rank: #22540 (+327)
15K → 20K
28:28 | 9:10/mi
Half· 13.11 mi
1:59:37
Rank: #22446 (+94)
20K → Half
6:00 | 8:48/mi
25K· 15.53 mi
2:21:46
Rank: #22133 (+313)
Half → 25K
22:09 | 9:08/mi
30K· 18.64 mi
2:51:58
Rank: #21874 (+259)
25K → 30K
30:12 | 9:43/mi
20M
3:05:37
Rank: #21798 (+76)
30K → 20M
13:39 | 10:03/mi
21M
3:15:35
Rank: #21589 (+209)
20M → 21M
9:58 | 9:58/mi
35K· 21.75 mi
3:22:24
Rank: #21491 (+98)
21M → 35K
6:49 | 9:07/mi
23M
3:34:16
Rank: #21292 (+199)
35K → 23M
11:52 | 9:29/mi
24M
3:43:42
Rank: #21213 (+79)
23M → 24M
9:26 | 9:26/mi
40K· 24.85 mi
3:51:30
Rank: #21063 (+150)
24M → 40K
7:48 | 9:07/mi
25.2M
3:55:03
Rank: #21003 (+60)
40K → 25.2M
3:33 | 10:18/mi
Finish· 26.22 mi
4:03:58
Rank: #20886 (+117)
25.2M → Finish
8:55 | 8:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:37
Pace9:07 /mi
2nd Half
Distance13.11 mi
Time2:04:21
Pace9:29 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:0328:109:0428:10
9:04
-
10K
6.21 mi11:56:0057:079:1228:57
9:19
+0:15
15K
9.32 mi12:24:021:25:099:0828:02
9:01
-0:18
20K
12.43 mi12:52:301:53:379:0928:28
9:10
+0:09
Half
13.11 mi12:58:301:59:379:076:00
8:48
-0:22
25K
15.53 mi13:20:392:21:469:0822:09
9:08
+0:20
30K
18.64 mi13:50:512:51:589:1430:12
9:43
+0:35
20M
20.00 mi14:04:303:05:379:1713:39
10:03
+0:20
21M
21.00 mi14:14:283:15:359:199:58
9:58
-0:05
35K
21.75 mi14:21:173:22:249:186:49
9:07
-0:51
23M
23.00 mi14:33:093:34:169:1911:52
9:29
+0:22
24M
24.00 mi14:42:353:43:429:199:26
9:26
-0:03
40K
24.85 mi14:50:233:51:309:197:48
9:07
-0:19
25.2M
25.20 mi14:53:563:55:039:203:33
10:18
+1:11
Finish
26.22 mi15:02:514:03:589:198:55
8:45
-1:33

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

8:45 /mi

Average Pace

9:19 /mi

Slowest Pace

10:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:36

76% of race

Time at Steady Pace

57:22

24% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:18 /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 mi11:27:0328:109:0428:10
9:04
#22710
10K
6.21 mi11:56:0057:079:1228:57
9:19
#23179
15K
9.32 mi12:24:021:25:099:0828:02
9:01
#22867
20K
12.43 mi12:52:301:53:379:0928:28
9:10
#22540
Half
13.11 mi12:58:301:59:379:076:00
8:48
#22446
25K
15.53 mi13:20:392:21:469:0822:09
9:08
#22133
30K
18.64 mi13:50:512:51:589:1430:12
9:43
#21874
20M
20.00 mi14:04:303:05:379:1713:39
10:03
#21798
21M
21.00 mi14:14:283:15:359:199:58
9:58
#21589
35K
21.75 mi14:21:173:22:249:186:49
9:07
#21491
23M
23.00 mi14:33:093:34:169:1911:52
9:29
#21292
24M
24.00 mi14:42:353:43:429:199:26
9:26
#21213
40K
24.85 mi14:50:233:51:309:197:48
9:07
#21063
25.2M
25.20 mi14:53:563:55:039:203:33
10:18
#21003
Finish
26.22 mi15:02:514:03:589:198:55
8:45
#20886
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi227109016901622142(Top 78%)8630(Top 71%)8630(Top 476%)
10K6.21 mi3.10 mi23179-4699244-2289244-22823585(Top 83%)9452(Top 77%)9452(Top 521%)
15K9.32 mi3.11 mi22867+3129048+1969048+19622142(Top 78%)8630(Top 71%)8630(Top 476%)
20K12.43 mi3.11 mi22540+3278879+1698879+16921744(Top 77%)8452(Top 69%)8452(Top 466%)
Half13.11 mi0.68 mi22446+948837+428837+4220924(Top 74%)8007(Top 65%)8007(Top 442%)
25K15.53 mi2.42 mi22133+3138672+1658672+16520520(Top 72%)7826(Top 64%)7826(Top 432%)
30K18.64 mi3.11 mi21874+2598554+1188554+11820752(Top 73%)8086(Top 66%)8086(Top 446%)
20M20.00 mi1.36 mi21798+768525+298525+2921113(Top 74%)8419(Top 69%)8419(Top 464%)
21M21.00 mi1.00 mi21589+2098438+878438+8718201(Top 64%)6905(Top 56%)6905(Top 381%)
35K21.75 mi0.75 mi21491+988395+438395+4318817(Top 66%)7368(Top 60%)7368(Top 406%)
23M23.00 mi1.25 mi21292+1998317+788317+7818617(Top 66%)7310(Top 60%)7310(Top 403%)
24M24.00 mi1.00 mi21213+798296+218296+2119401(Top 68%)7775(Top 64%)7775(Top 429%)
40K24.85 mi0.85 mi21063+1508236+608236+6017031(Top 60%)6614(Top 54%)6614(Top 365%)
25.2M25.20 mi0.35 mi21003+608211+258211+2518335(Top 65%)7323(Top 60%)7323(Top 404%)
Finish26.22 mi1.02 mi20886+1178164+478164+4717819(Top 63%)7002(Top 57%)7002(Top 386%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

22142

Females

8630

F45-49

8630

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

23585

Females

9452

F45-49

9452

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

22142

Females

8630

F45-49

8630

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

21744

Females

8452

F45-49

8452

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

20924

Females

8007

F45-49

8007

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

20520

Females

7826

F45-49

7826

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20752

Females

8086

F45-49

8086

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

21113

Females

8419

F45-49

8419

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

18201

Females

6905

F45-49

6905

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

18817

Females

7368

F45-49

7368

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

18617

Females

7310

F45-49

7310

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

19401

Females

7775

F45-49

7775

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17031

Females

6614

F45-49

6614

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18335

Females

7323

F45-49

7323

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17819

Females

7002

F45-49

7002

Passing Analysis

Category:
Athletes Passed
2688
Passed By
864
Net Change
+1824
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22710
5K → 10K93562-469#22710#23179
10K → 15K35644+312#23179#22867
15K → 20K36841+327#22867#22540
20K → Half995+94#22540#22446
Half → 25K33421+313#22446#22133
25K → 30K32970+259#22133#21874
30K → 20M12751+76#21874#21798
20M → 21M22011+209#21798#21589
21M → 35K1079+98#21589#21491
35K → 23M21617+199#21491#21292
23M → 24M9920+79#21292#21213
24M → 40K1533+150#21213#21063
40K → 25.2M666+60#21063#21003
25.2M → Finish1214+117#21003#20886
TOTALS2688864+1824
📊

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