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BOSTON MARATHON 2025

Katharine Lorraine-Mace

Bib: 15858•F

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 43%
Masters (Masters Women)
#0 / 6759
Top 30%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:56
Rank: #16798
Start → 5K
24:56 | 8:02/mi
10K· 6.21 mi
49:34
Rank: #16326 (+472)
5K → 10K
24:38 | 7:56/mi
15K· 9.32 mi
1:14:00
Rank: #15842 (+484)
10K → 15K
24:26 | 7:52/mi
20K· 12.43 mi
1:38:40
Rank: #15450 (+392)
15K → 20K
24:40 | 7:56/mi
Half· 13.11 mi
1:44:04
Rank: #15432 (+18)
20K → Half
5:24 | 7:55/mi
25K· 15.53 mi
2:03:37
Rank: #15228 (+204)
Half → 25K
19:33 | 8:04/mi
30K· 18.64 mi
2:30:10
Rank: #15179 (+49)
25K → 30K
26:33 | 8:33/mi
20M
2:42:19
Rank: #15264 (-85)
30K → 20M
12:09 | 8:56/mi
21M
2:51:49
Rank: #15270 (-6)
20M → 21M
9:30 | 9:30/mi
35K· 21.75 mi
2:58:32
Rank: #15369 (-99)
21M → 35K
6:43 | 8:59/mi
23M
3:10:02
Rank: #15470 (-101)
35K → 23M
11:30 | 9:11/mi
24M
3:19:11
Rank: #15580 (-110)
23M → 24M
9:09 | 9:09/mi
40K· 24.85 mi
3:27:07
Rank: #15633 (-53)
24M → 40K
7:56 | 9:17/mi
25.2M
3:30:28
Rank: #15631 (+2)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:39:16
Rank: #15688 (-57)
25.2M → Finish
8:48 | 8:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:04
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:55:12
Pace8:47 /mi
📊Positive Split: 10.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:3924:568:0224:56
8:02
-
10K
6.21 mi11:21:1749:347:5924:38
7:56
-0:06
15K
9.32 mi11:45:431:14:007:5624:26
7:52
-0:04
20K
12.43 mi12:10:231:38:407:5624:40
7:56
+0:04
Half
13.11 mi12:15:471:44:047:565:24
7:55
-0:01
25K
15.53 mi12:35:202:03:377:5719:33
8:04
+0:09
30K
18.64 mi13:01:532:30:108:0326:33
8:33
+0:29
20M
20.00 mi13:14:022:42:198:0712:09
8:56
+0:23
21M
21.00 mi13:23:322:51:498:119:30
9:30
+0:34
35K
21.75 mi13:30:152:58:328:136:43
8:59
-0:31
23M
23.00 mi13:41:453:10:028:1611:30
9:11
+0:12
24M
24.00 mi13:50:543:19:118:189:09
9:09
-0:02
40K
24.85 mi13:58:503:27:078:207:56
9:17
+0:08
25.2M
25.20 mi14:02:113:30:288:213:21
9:43
+0:26
Finish
26.22 mi14:10:593:39:168:228:48
8:38
-1:05

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

7:52 /mi

Average Pace

8:22 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:37

56% of race

Time at Steady Pace

47:30

22% of race

Time at Slower Pace

48:09

22% of race

Average Pace: 8:22 /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 mi10:56:3924:568:0224:56
8:02
#16798
10K
6.21 mi11:21:1749:347:5924:38
7:56
#16326
15K
9.32 mi11:45:431:14:007:5624:26
7:52
#15842
20K
12.43 mi12:10:231:38:407:5624:40
7:56
#15450
Half
13.11 mi12:15:471:44:047:565:24
7:55
#15432
25K
15.53 mi12:35:202:03:377:5719:33
8:04
#15228
30K
18.64 mi13:01:532:30:108:0326:33
8:33
#15179
20M
20.00 mi13:14:022:42:198:0712:09
8:56
#15264
21M
21.00 mi13:23:322:51:498:119:30
9:30
#15270
35K
21.75 mi13:30:152:58:328:136:43
8:59
#15369
23M
23.00 mi13:41:453:10:028:1611:30
9:11
#15470
24M
24.00 mi13:50:543:19:118:189:09
9:09
#15580
40K
24.85 mi13:58:503:27:078:207:56
9:17
#15633
25.2M
25.20 mi14:02:113:30:288:213:21
9:43
#15631
Finish
26.22 mi14:10:593:39:168:228:48
8:38
#15688
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi167985629562914965(Top 53%)4562(Top 37%)4562(Top 266%)
10K6.21 mi3.10 mi16326+4725336+2935336+29315913(Top 56%)5076(Top 42%)5076(Top 295%)
15K9.32 mi3.11 mi15842+4845043+2935043+29314965(Top 53%)4562(Top 37%)4562(Top 266%)
20K12.43 mi3.11 mi15450+3924832+2114832+21114465(Top 51%)4353(Top 36%)4353(Top 253%)
Half13.11 mi0.68 mi15432+184828+44828+415296(Top 54%)4793(Top 39%)4793(Top 279%)
25K15.53 mi2.42 mi15228+2044736+924736+9214397(Top 51%)4432(Top 36%)4432(Top 258%)
30K18.64 mi3.11 mi15179+494764-284764-2815063(Top 53%)4938(Top 40%)4938(Top 287%)
20M20.00 mi1.36 mi15264-854845-814845-8116486(Top 58%)5867(Top 48%)5867(Top 342%)
21M21.00 mi1.00 mi15270-64877-324877-3216093(Top 57%)5752(Top 47%)5752(Top 335%)
35K21.75 mi0.75 mi15369-994953-764953-7618133(Top 64%)6969(Top 57%)6969(Top 406%)
23M23.00 mi1.25 mi15470-1015056-1035056-10317271(Top 61%)6587(Top 54%)6587(Top 383%)
24M24.00 mi1.00 mi15580-1105137-815137-8118120(Top 64%)7094(Top 58%)7094(Top 413%)
40K24.85 mi0.85 mi15633-535200-635200-6317754(Top 63%)6996(Top 57%)6996(Top 407%)
25.2M25.20 mi0.35 mi15631+25209-95209-915723(Top 55%)5934(Top 49%)5934(Top 345%)
Finish26.22 mi1.02 mi15688-575263-545263-5417094(Top 60%)6599(Top 54%)6599(Top 384%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

14965

Females

4562

F40-44

4562

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15913

Females

5076

F40-44

5076

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

14965

Females

4562

F40-44

4562

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

14465

Females

4353

F40-44

4353

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

15296

Females

4793

F40-44

4793

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

14397

Females

4432

F40-44

4432

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

15063

Females

4938

F40-44

4938

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

16486

Females

5867

F40-44

5867

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

16093

Females

5752

F40-44

5752

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

18133

Females

6969

F40-44

6969

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

17271

Females

6587

F40-44

6587

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

18120

Females

7094

F40-44

7094

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17754

Females

6996

F40-44

6996

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15723

Females

5934

F40-44

5934

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

17094

Females

6599

F40-44

6599

Passing Analysis

Category:
Athletes Passed
2605
Passed By
1495
Net Change
+1110
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16798
5K → 10K583111+472#16798#16326
10K → 15K52541+484#16326#15842
15K → 20K42735+392#15842#15450
20K → Half4628+18#15450#15432
Half → 25K27167+204#15432#15228
25K → 30K264215+49#15228#15179
30K → 20M90175-85#15179#15264
20M → 21M111117-6#15264#15270
21M → 35K40139-99#15270#15369
35K → 23M85186-101#15369#15470
23M → 24M32142-110#15470#15580
24M → 40K59112-53#15580#15633
40K → 25.2M2624+2#15633#15631
25.2M → Finish46103-57#15631#15688
TOTALS26051495+1110
📊

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