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BOSTON MARATHON 2025

Lydia Briggs

Bib: 7043•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 15%
Gender (Female)
#0 / 12228
Top 3%
Division (F18-39)
#0 / 5469
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:44
Rank: #2780
Start → 5K
19:44 | 6:21/mi
10K· 6.21 mi
39:41
Rank: #2965 (-185)
5K → 10K
19:57 | 6:25/mi
15K· 9.32 mi
59:53
Rank: #3172 (-207)
10K → 15K
20:12 | 6:30/mi
20K· 12.43 mi
1:20:31
Rank: #3356 (-184)
15K → 20K
20:38 | 6:38/mi
Half· 13.11 mi
1:24:53
Rank: #3338 (+18)
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:41:14
Rank: #3500 (-162)
Half → 25K
16:21 | 6:45/mi
30K· 18.64 mi
2:02:58
Rank: #3645 (-145)
25K → 30K
21:44 | 7:00/mi
20M
2:12:49
Rank: #3714 (-69)
30K → 20M
9:51 | 7:15/mi
21M
2:20:29
Rank: #3792 (-78)
20M → 21M
7:40 | 7:40/mi
35K· 21.75 mi
2:25:40
Rank: #3811 (-19)
21M → 35K
5:11 | 6:56/mi
23M
2:35:01
Rank: #3952 (-141)
35K → 23M
9:21 | 7:28/mi
24M
2:42:20
Rank: #4050 (-98)
23M → 24M
7:19 | 7:19/mi
40K· 24.85 mi
2:48:37
Rank: #4104 (-54)
24M → 40K
6:17 | 7:21/mi
25.2M
2:51:23
Rank: #4137 (-33)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
2:58:31
Rank: #4187 (-50)
25.2M → Finish
7:08 | 7:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:53
Pace6:28 /mi
2nd Half
Distance13.11 mi
Time1:33:38
Pace7:09 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:3319:446:2119:44
6:21
-
10K
6.21 mi10:46:3039:416:2319:57
6:25
+0:04
15K
9.32 mi11:06:4259:536:2520:12
6:30
+0:05
20K
12.43 mi11:27:201:20:316:2920:38
6:38
+0:08
Half
13.11 mi11:31:421:24:536:284:22
6:24
-0:14
25K
15.53 mi11:48:031:41:146:3116:21
6:45
+0:21
30K
18.64 mi12:09:472:02:586:3621:44
7:00
+0:15
20M
20.00 mi12:19:382:12:496:389:51
7:15
+0:15
21M
21.00 mi12:27:182:20:296:417:40
7:40
+0:25
35K
21.75 mi12:32:292:25:406:425:11
6:56
-0:44
23M
23.00 mi12:41:502:35:016:449:21
7:28
+0:32
24M
24.00 mi12:49:092:42:206:467:19
7:19
-0:09
40K
24.85 mi12:55:262:48:376:476:17
7:21
+0:02
25.2M
25.20 mi12:58:122:51:236:482:46
8:01
+0:40
Finish
26.22 mi13:05:202:58:316:497:08
7:00
-1:01

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

6:21 /mi

Average Pace

6:49 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:14

57% of race

Time at Steady Pace

34:03

19% of race

Time at Slower Pace

43:14

24% of race

Average Pace: 6:49 /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 mi10:26:3319:446:2119:44
6:21
#2780
10K
6.21 mi10:46:3039:416:2319:57
6:25
#2965
15K
9.32 mi11:06:4259:536:2520:12
6:30
#3172
20K
12.43 mi11:27:201:20:316:2920:38
6:38
#3356
Half
13.11 mi11:31:421:24:536:284:22
6:24
#3338
25K
15.53 mi11:48:031:41:146:3116:21
6:45
#3500
30K
18.64 mi12:09:472:02:586:3621:44
7:00
#3645
20M
20.00 mi12:19:382:12:496:389:51
7:15
#3714
21M
21.00 mi12:27:182:20:296:417:40
7:40
#3792
35K
21.75 mi12:32:292:25:406:425:11
6:56
#3811
23M
23.00 mi12:41:502:35:016:449:21
7:28
#3952
24M
24.00 mi12:49:092:42:206:467:19
7:19
#4050
40K
24.85 mi12:55:262:48:376:476:17
7:21
#4104
25.2M
25.20 mi12:58:122:51:236:482:46
8:01
#4137
Finish
26.22 mi13:05:202:58:316:497:08
7:00
#4187
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27801271273598(Top 13%)191(Top 2%)191(Top 3%)
10K6.21 mi3.10 mi2965-185139-12139-123200(Top 11%)151(Top 1%)151(Top 3%)
15K9.32 mi3.11 mi3172-207149-10149-103598(Top 13%)191(Top 2%)191(Top 3%)
20K12.43 mi3.11 mi3356-184164-15164-153971(Top 14%)227(Top 2%)227(Top 4%)
Half13.11 mi0.68 mi3338+18161+3161+33126(Top 11%)150(Top 1%)150(Top 3%)
25K15.53 mi2.42 mi3500-162179-18179-184457(Top 16%)321(Top 3%)321(Top 6%)
30K18.64 mi3.11 mi3645-145196-17196-174662(Top 16%)396(Top 3%)396(Top 7%)
20M20.00 mi1.36 mi3714-69208-12208-125500(Top 19%)636(Top 5%)636(Top 12%)
21M21.00 mi1.00 mi3792-78219-11219-115491(Top 19%)740(Top 6%)740(Top 14%)
35K21.75 mi0.75 mi3811-19226-7226-74947(Top 17%)578(Top 5%)578(Top 11%)
23M23.00 mi1.25 mi3952-141258-32258-326464(Top 23%)1172(Top 10%)1172(Top 21%)
24M24.00 mi1.00 mi4050-98278-20278-206528(Top 23%)1262(Top 10%)1262(Top 23%)
40K24.85 mi0.85 mi4104-54294-16294-165929(Top 21%)1099(Top 9%)1099(Top 20%)
25.2M25.20 mi0.35 mi4137-33306-12306-126099(Top 21%)1257(Top 10%)1257(Top 23%)
Finish26.22 mi1.02 mi4187-50319-13319-135749(Top 20%)1144(Top 9%)1144(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3598

Females

191

F18-39

191

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3200

Females

151

F18-39

151

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3598

Females

191

F18-39

191

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3971

Females

227

F18-39

227

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3126

Females

150

F18-39

150

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4457

Females

321

F18-39

321

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4662

Females

396

F18-39

396

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5500

Females

636

F18-39

636

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5491

Females

740

F18-39

740

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4947

Females

578

F18-39

578

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6464

Females

1172

F18-39

1172

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6528

Females

1262

F18-39

1262

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5929

Females

1099

F18-39

1099

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

6099

Females

1257

F18-39

1257

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5749

Females

1144

F18-39

1144

Passing Analysis

Category:
Athletes Passed
523
Passed By
1930
Net Change
-1407
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2780
5K → 10K68253-185#2780#2965
10K → 15K33240-207#2965#3172
15K → 20K48232-184#3172#3356
20K → Half3012+18#3356#3338
Half → 25K33195-162#3338#3500
25K → 30K70215-145#3500#3645
30K → 20M43112-69#3645#3714
20M → 21M34112-78#3714#3792
21M → 35K2241-19#3792#3811
35K → 23M39180-141#3811#3952
23M → 24M30128-98#3952#4050
24M → 40K2781-54#4050#4104
40K → 25.2M1144-33#4104#4137
25.2M → Finish3585-50#4137#4187
TOTALS5231930-1407
📊

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