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BOSTON MARATHON 2025

Lauren Mills

Bib: 27866•F

MA

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

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
10:40/mi
33:08
↑ 97↓ 3451.5%
10K· 6.21 mi
9:49/mi
1:03:38
↑ 79↓ 1380.4%
15K· 9.32 mi
9:17/mi
1:32:28
↑ 67↓ 78
20K· 12.43 mi
9:26/mi
2:01:48
↑ 106↓ 860.1%
Half· 13.11 mi
9:10/mi
2:08:03
↑ 19↓ 370.5%
25K· 15.53 mi
9:40/mi
2:31:30
↑ 66↓ 880.2%
30K· 18.64 mi
10:21/mi
3:03:38
↑ 181↓ 1480.2%
20M
10:18/mi
3:17:38
↑ 64↓ 500.2%
21M
11:13/mi
3:28:51
↑ 106↓ 241.6%
35K· 21.75 mi
10:08/mi
3:36:26
↑ 17↓ 861.7%
23M
10:06/mi
3:49:05
↑ 23↓ 630.6%
24M
10:30/mi
3:59:35
↓ 821.3%
40K· 24.85 mi
10:02/mi
4:08:10
↓ 200.3%
25.2M
11:42/mi
4:12:12
↑ 13↓ 160.2%
Finish· 26.22 mi
9:34/mi
4:21:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:03
Pace9:46 /mi
2nd Half
Distance13.11 mi
Time2:13:54
Pace10:13 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5333:0810:4033:08
10:40
-
10K
6.21 mi12:21:231:03:3810:1430:30
9:49
-0:51
15K
9.32 mi12:50:131:32:289:5528:50
9:17
-0:32
20K
12.43 mi13:19:332:01:489:4829:20
9:26
+0:09
Half
13.11 mi13:25:482:08:039:466:15
9:10
-0:16
25K
15.53 mi13:49:152:31:309:4523:27
9:40
+0:30
30K
18.64 mi14:21:233:03:389:5132:08
10:21
+0:41
20M
20.00 mi14:35:233:17:389:5314:00
10:18
-0:03
21M
21.00 mi14:46:363:28:519:5711:13
11:13
+0:55
35K
21.75 mi14:54:113:36:269:577:35
10:08
-1:05
23M
23.00 mi15:06:503:49:059:5812:39
10:06
-0:02
24M
24.00 mi15:17:203:59:359:5910:30
10:30
+0:24
40K
24.85 mi15:25:554:08:109:598:35
10:02
-0:28
25.2M
25.20 mi15:29:574:12:1210:004:02
11:42
+1:40
Finish
26.22 mi15:39:424:21:5710:009:45
9:34
-2:08

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

9:10 /mi

Average Pace

10:00 /mi

Slowest Pace

11:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:37

37% of race

Time at Steady Pace

1:45:27

40% of race

Time at Slower Pace

58:53

22% of race

Average Pace: 9:59 /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 mi11:50:5333:0810:4033:08
10:40
#27075
10K
6.21 mi12:21:231:03:3810:1430:30
9:49
#25992
15K
9.32 mi12:50:131:32:289:5528:50
9:17
#25098
20K
12.43 mi13:19:332:01:489:4829:20
9:26
#24543
Half
13.11 mi13:25:482:08:039:466:15
9:10
#24459
25K
15.53 mi13:49:152:31:309:4523:27
9:40
#24105
30K
18.64 mi14:21:233:03:389:5132:08
10:21
#23822
20M
20.00 mi14:35:233:17:389:5314:00
10:18
#23671
21M
21.00 mi14:46:363:28:519:5711:13
11:13
#23578
35K
21.75 mi14:54:113:36:269:577:35
10:08
#23512
23M
23.00 mi15:06:503:49:059:5812:39
10:06
#23361
24M
24.00 mi15:17:203:59:359:5910:30
10:30
#23331
40K
24.85 mi15:25:554:08:109:598:35
10:02
#23220
25.2M
25.20 mi15:29:574:12:1210:004:02
11:42
#23206
Finish
26.22 mi15:39:424:21:5710:009:45
9:34
#23161
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi27075113701137023157(Top 82%)9186(Top 75%)9186(Top 507%)
10K6.21 mi3.10 mi25992+108310773+59710773+59724896(Top 88%)10176(Top 83%)10176(Top 561%)
15K9.32 mi3.11 mi25098+89410275+49810275+49823157(Top 82%)9186(Top 75%)9186(Top 507%)
20K12.43 mi3.11 mi24543+5559998+2779998+27722731(Top 80%)8993(Top 74%)8993(Top 496%)
Half13.11 mi0.68 mi24459+849954+449954+4422499(Top 79%)8890(Top 73%)8890(Top 490%)
25K15.53 mi2.42 mi24105+3549762+1929762+19222432(Top 79%)8894(Top 73%)8894(Top 491%)
30K18.64 mi3.11 mi23822+2839640+1229640+12222583(Top 80%)9097(Top 74%)9097(Top 502%)
20M20.00 mi1.36 mi23671+1519584+569584+5621889(Top 77%)8830(Top 72%)8830(Top 487%)
21M21.00 mi1.00 mi23578+939541+439541+4321968(Top 77%)8954(Top 73%)8954(Top 494%)
35K21.75 mi0.75 mi23512+669519+229519+2222285(Top 78%)9184(Top 75%)9184(Top 507%)
23M23.00 mi1.25 mi23361+1519453+669453+6620846(Top 73%)8483(Top 69%)8483(Top 468%)
24M24.00 mi1.00 mi23331+309457-49457-422834(Top 80%)9561(Top 78%)9561(Top 527%)
40K24.85 mi0.85 mi23220+1119425+329425+3220594(Top 73%)8462(Top 69%)8462(Top 467%)
25.2M25.20 mi0.35 mi23206+149419+69419+622584(Top 80%)9460(Top 77%)9460(Top 522%)
Finish26.22 mi1.02 mi23161+459414+59414+521454(Top 76%)8892(Top 73%)8892(Top 490%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

23157

Females

9186

F45-49

9186

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

24896

Females

10176

F45-49

10176

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

23157

Females

9186

F45-49

9186

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

22731

Females

8993

F45-49

8993

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

22499

Females

8890

F45-49

8890

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

22432

Females

8894

F45-49

8894

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22583

Females

9097

F45-49

9097

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

21889

Females

8830

F45-49

8830

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

21968

Females

8954

F45-49

8954

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

22285

Females

9184

F45-49

9184

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

20846

Females

8483

F45-49

8483

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22834

Females

9561

F45-49

9561

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20594

Females

8462

F45-49

8462

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22584

Females

9460

F45-49

9460

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

21454

Females

8892

F45-49

8892

Passing Analysis

Category:
Athletes Passed
4092
Passed By
178
Net Change
+3914
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27075
5K → 10K10841+1083#27075#25992
10K → 15K8940+894#25992#25098
15K → 20K5594+555#25098#24543
20K → Half851+84#24543#24459
Half → 25K3617+354#24459#24105
25K → 30K32744+283#24105#23822
30K → 20M16413+151#23822#23671
20M → 21M11522+93#23671#23578
21M → 35K8418+66#23578#23512
35K → 23M1576+151#23512#23361
23M → 24M6434+30#23361#23331
24M → 40K1154+111#23331#23220
40K → 25.2M228+14#23220#23206
25.2M → Finish6116+45#23206#23161
TOTALS4092178+3914
📊

Passing Visuals

Category:
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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