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BOSTON MARATHON 2025

Tonya Lafferty

Bib: 20544•F

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 49%
Masters (Masters Women)
#0 / 6759
Top 37%
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
25:04
Rank: #17151
Start → 5K
25:04 | 8:04/mi
10K· 6.21 mi
49:55
Rank: #16791 (+360)
5K → 10K
24:51 | 8:00/mi
15K· 9.32 mi
1:14:38
Rank: #16396 (+395)
10K → 15K
24:43 | 7:57/mi
20K· 12.43 mi
1:39:55
Rank: #16246 (+150)
15K → 20K
25:17 | 8:08/mi
Half· 13.11 mi
1:45:41
Rank: #16397 (-151)
20K → Half
5:46 | 8:27/mi
25K· 15.53 mi
2:05:46
Rank: #16299 (+98)
Half → 25K
20:05 | 8:17/mi
30K· 18.64 mi
2:33:14
Rank: #16347 (-48)
25K → 30K
27:28 | 8:50/mi
20M
2:45:37
Rank: #16369 (-22)
30K → 20M
12:23 | 9:07/mi
21M
2:55:24
Rank: #16399 (-30)
20M → 21M
9:47 | 9:47/mi
35K· 21.75 mi
3:02:08
Rank: #16451 (-52)
21M → 35K
6:44 | 9:00/mi
23M
3:14:05
Rank: #16609 (-158)
35K → 23M
11:57 | 9:33/mi
24M
3:23:26
Rank: #16729 (-120)
23M → 24M
9:21 | 9:21/mi
40K· 24.85 mi
3:31:26
Rank: #16788 (-59)
24M → 40K
8:00 | 9:21/mi
25.2M
3:34:57
Rank: #16801 (-13)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
3:44:00
Rank: #16898 (-97)
25.2M → Finish
9:03 | 8:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:41
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:58:19
Pace9:02 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:2825:048:0425:04
8:04
-
10K
6.21 mi11:43:1949:558:0224:51
8:00
-0:04
15K
9.32 mi12:08:021:14:388:0024:43
7:57
-0:03
20K
12.43 mi12:33:191:39:558:0225:17
8:08
+0:11
Half
13.11 mi12:39:051:45:418:045:46
8:27
+0:19
25K
15.53 mi12:59:102:05:468:0620:05
8:17
-0:10
30K
18.64 mi13:26:382:33:148:1327:28
8:50
+0:33
20M
20.00 mi13:39:012:45:378:1712:23
9:07
+0:17
21M
21.00 mi13:48:482:55:248:219:47
9:47
+0:40
35K
21.75 mi13:55:323:02:088:226:44
9:00
-0:47
23M
23.00 mi14:07:293:14:058:2611:57
9:33
+0:33
24M
24.00 mi14:16:503:23:268:299:21
9:21
-0:12
40K
24.85 mi14:24:503:31:268:308:00
9:21
0:00
25.2M
25.20 mi14:28:213:34:578:323:31
10:12
+0:51
Finish
26.22 mi14:37:243:44:008:339:03
8:53
-1:19

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

7:57 /mi

Average Pace

8:33 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:46

56% of race

Time at Steady Pace

55:38

25% of race

Time at Slower Pace

42:36

19% of race

Average Pace: 8:33 /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 mi11:18:2825:048:0425:04
8:04
#17151
10K
6.21 mi11:43:1949:558:0224:51
8:00
#16791
15K
9.32 mi12:08:021:14:388:0024:43
7:57
#16396
20K
12.43 mi12:33:191:39:558:0225:17
8:08
#16246
Half
13.11 mi12:39:051:45:418:045:46
8:27
#16397
25K
15.53 mi12:59:102:05:468:0620:05
8:17
#16299
30K
18.64 mi13:26:382:33:148:1327:28
8:50
#16347
20M
20.00 mi13:39:012:45:378:1712:23
9:07
#16369
21M
21.00 mi13:48:482:55:248:219:47
9:47
#16399
35K
21.75 mi13:55:323:02:088:226:44
9:00
#16451
23M
23.00 mi14:07:293:14:058:2611:57
9:33
#16609
24M
24.00 mi14:16:503:23:268:299:21
9:21
#16729
40K
24.85 mi14:24:503:31:268:308:00
9:21
#16788
25.2M
25.20 mi14:28:213:34:578:323:31
10:12
#16801
Finish
26.22 mi14:37:243:44:008:339:03
8:53
#16898
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi171515828582815718(Top 55%)4982(Top 41%)4982(Top 290%)
10K6.21 mi3.10 mi16791+3605611+2175611+21716489(Top 58%)5419(Top 44%)5419(Top 315%)
15K9.32 mi3.11 mi16396+3955375+2365375+23615718(Top 55%)4982(Top 41%)4982(Top 290%)
20K12.43 mi3.11 mi16246+1505297+785297+7815920(Top 56%)5169(Top 42%)5169(Top 301%)
Half13.11 mi0.68 mi16397-1515378-815378-8118905(Top 67%)6828(Top 56%)6828(Top 397%)
25K15.53 mi2.42 mi16299+985341+375341+3715833(Top 56%)5221(Top 43%)5221(Top 304%)
30K18.64 mi3.11 mi16347-485440-995440-9916846(Top 59%)5949(Top 49%)5949(Top 346%)
20M20.00 mi1.36 mi16369-225475-355475-3517380(Top 61%)6353(Top 52%)6353(Top 370%)
21M21.00 mi1.00 mi16399-305527-525527-5217416(Top 61%)6486(Top 53%)6486(Top 378%)
35K21.75 mi0.75 mi16451-525574-475574-4718240(Top 64%)7032(Top 58%)7032(Top 409%)
23M23.00 mi1.25 mi16609-1585702-1285702-12818888(Top 66%)7453(Top 61%)7453(Top 434%)
24M24.00 mi1.00 mi16729-1205799-975799-9719040(Top 67%)7560(Top 62%)7560(Top 440%)
40K24.85 mi0.85 mi16788-595865-665865-6618116(Top 64%)7174(Top 59%)7174(Top 418%)
25.2M25.20 mi0.35 mi16801-135895-305895-3017889(Top 63%)7067(Top 58%)7067(Top 411%)
Finish26.22 mi1.02 mi16898-975961-665961-6618457(Top 65%)7313(Top 60%)7313(Top 426%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

15718

Females

4982

F40-44

4982

5K→10K

3.1 - 6.2 mi

Top 58%
×5stories
+79ft-138ft

Overall

16489

Females

5419

F40-44

5419

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

15718

Females

4982

F40-44

4982

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

15920

Females

5169

F40-44

5169

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

18905

Females

6828

F40-44

6828

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

15833

Females

5221

F40-44

5221

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

16846

Females

5949

F40-44

5949

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

17380

Females

6353

F40-44

6353

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

17416

Females

6486

F40-44

6486

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

18240

Females

7032

F40-44

7032

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

18888

Females

7453

F40-44

7453

23M→24M

23.0 - 24.0 mi

Top 67%
×6stories
+12ft-82ft

Overall

19040

Females

7560

F40-44

7560

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18116

Females

7174

F40-44

7174

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17889

Females

7067

F40-44

7067

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

18457

Females

7313

F40-44

7313

Passing Analysis

Category:
Athletes Passed
2178
Passed By
1925
Net Change
+253
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17151
5K → 10K508148+360#17151#16791
10K → 15K44247+395#16791#16396
15K → 20K284134+150#16396#16246
20K → Half7158-151#16246#16397
Half → 25K205107+98#16397#16299
25K → 30K214262-48#16299#16347
30K → 20M104126-22#16347#16369
20M → 21M98128-30#16369#16399
21M → 35K54106-52#16399#16451
35K → 23M70228-158#16451#16609
23M → 24M49169-120#16609#16729
24M → 40K68127-59#16729#16788
40K → 25.2M3144-13#16788#16801
25.2M → Finish44141-97#16801#16898
TOTALS21781925+253
📊

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