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BOSTON MARATHON 2025

Bree Lambert-Sanders

Bib: 21582•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 40%
Masters (Masters Women)
#0 / 6759
Top 26%
Division (F55-59)
#0 / 994
Top 9%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:42
Rank: #16204
Start → 5K
7:57/mi
24:42 split
10K· 6.21 mi
49:30
Rank: #16233 (-29)
5K → 10K
7:59/mi
24:48 split
15K· 9.32 mi
1:15:32
Rank: #17116 (-883)
10K → 15K
8:23/mi
26:02 split
20K· 12.43 mi
1:41:01
Rank: #16884 (+232)
15K → 20K
8:12/mi
25:29 split
Half· 13.11 mi
1:46:34
Rank: #16887 (-3)
20K → Half
8:08/mi
5:33 split
25K· 15.53 mi
2:06:38
Rank: #16654 (+233)
Half → 25K
8:17/mi
20:04 split
30K· 18.64 mi
2:33:06
Rank: #16303 (+351)
25K → 30K
8:31/mi
26:28 split
20M
2:44:41
Rank: #16096 (+207)
30K → 20M
8:31/mi
11:35 split
21M
2:53:44
Rank: #15896 (+200)
20M → 21M
9:03/mi
9:03 split
35K· 21.75 mi
2:59:53
Rank: #15772 (+124)
21M → 35K
8:13/mi
6:09 split
23M
3:10:17
Rank: #15544 (+228)
35K → 23M
8:18/mi
10:24 split
24M
3:18:33
Rank: #15417 (+127)
23M → 24M
8:16/mi
8:16 split
40K· 24.85 mi
3:25:42
Rank: #15283 (+134)
24M → 40K
8:22/mi
7:09 split
25.2M
3:28:48
Rank: #15228 (+55)
40K → 25.2M
8:59/mi
3:06 split
Finish· 26.22 mi
3:36:59
Rank: #15109 (+119)
25.2M → Finish
8:02/mi
8:11 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:34
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:50:25
Pace8:25 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:2524:427:5724:42
7:57
-
10K
6.21 mi11:46:1349:307:5824:48
7:59
+0:02
15K
9.32 mi12:12:151:15:328:0626:02
8:23
+0:24
20K
12.43 mi12:37:441:41:018:0825:29
8:12
-0:11
Half
13.11 mi12:43:171:46:348:085:33
8:08
-0:04
25K
15.53 mi13:03:212:06:388:0920:04
8:17
+0:09
30K
18.64 mi13:29:492:33:068:1326:28
8:31
+0:14
20M
20.00 mi13:41:242:44:418:1411:35
8:31
0:00
21M
21.00 mi13:50:272:53:448:169:03
9:03
+0:32
35K
21.75 mi13:56:362:59:538:166:09
8:13
-0:50
23M
23.00 mi14:07:003:10:178:1610:24
8:18
+0:05
24M
24.00 mi14:15:163:18:338:168:16
8:16
-0:02
40K
24.85 mi14:22:253:25:428:177:09
8:22
+0:06
25.2M
25.20 mi14:25:313:28:488:173:06
8:59
+0:37
Finish
26.22 mi14:33:423:36:598:178:11
8:02
-0:57

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

8:17 /mi

Slowest Pace

9:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:24:50

94% of race

Time at Steady Pace

12:09

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:17 /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 mi11:21:2524:427:5724:42
7:57
#16204
10K
6.21 mi11:46:1349:307:5824:48
7:59
#16233
15K
9.32 mi12:12:151:15:328:0626:02
8:23
#17116
20K
12.43 mi12:37:441:41:018:0825:29
8:12
#16884
Half
13.11 mi12:43:171:46:348:085:33
8:08
#16887
25K
15.53 mi13:03:212:06:388:0920:04
8:17
#16654
30K
18.64 mi13:29:492:33:068:1326:28
8:31
#16303
20M
20.00 mi13:41:242:44:418:1411:35
8:31
#16096
21M
21.00 mi13:50:272:53:448:169:03
9:03
#15896
35K
21.75 mi13:56:362:59:538:166:09
8:13
#15772
23M
23.00 mi14:07:003:10:178:1610:24
8:18
#15544
24M
24.00 mi14:15:163:18:338:168:16
8:16
#15417
40K
24.85 mi14:22:253:25:428:177:09
8:22
#15283
25.2M
25.20 mi14:25:313:28:488:173:06
8:59
#15228
Finish
26.22 mi14:33:423:36:598:178:11
8:02
#15109
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi162045267526718575(Top 65%)6641(Top 54%)6641(Top 668%)
10K6.21 mi3.10 mi16233-295286-195286-1916351(Top 58%)5336(Top 44%)5336(Top 537%)
15K9.32 mi3.11 mi17116-8835780-4945780-49418575(Top 65%)6641(Top 54%)6641(Top 668%)
20K12.43 mi3.11 mi16884+2325670+1105670+11016326(Top 57%)5398(Top 44%)5398(Top 543%)
Half13.11 mi0.68 mi16887-35673-35673-316872(Top 59%)5675(Top 46%)5675(Top 571%)
25K15.53 mi2.42 mi16654+2335557+1165557+11615774(Top 56%)5177(Top 42%)5177(Top 521%)
30K18.64 mi3.11 mi16303+3515416+1415416+14114881(Top 52%)4839(Top 40%)4839(Top 487%)
20M20.00 mi1.36 mi16096+2075320+965320+9613964(Top 49%)4499(Top 37%)4499(Top 453%)
21M21.00 mi1.00 mi15896+2005245+755245+7513833(Top 49%)4539(Top 37%)4539(Top 457%)
35K21.75 mi0.75 mi15772+1245195+505195+5013803(Top 49%)4583(Top 37%)4583(Top 461%)
23M23.00 mi1.25 mi15544+2285096+995096+9912111(Top 43%)3804(Top 31%)3804(Top 383%)
24M24.00 mi1.00 mi15417+1275051+455051+4513067(Top 46%)4358(Top 36%)4358(Top 438%)
40K24.85 mi0.85 mi15283+1345003+485003+4812587(Top 44%)4240(Top 35%)4240(Top 427%)
25.2M25.20 mi0.35 mi15228+554988+154988+1511836(Top 42%)3912(Top 32%)3912(Top 394%)
Finish26.22 mi1.02 mi15109+1194937+514937+5113119(Top 46%)4507(Top 37%)4507(Top 453%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

18575

Females

6641

F55-59

6641

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

16351

Females

5336

F55-59

5336

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

18575

Females

6641

F55-59

6641

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

16326

Females

5398

F55-59

5398

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

16872

Females

5675

F55-59

5675

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

15774

Females

5177

F55-59

5177

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

14881

Females

4839

F55-59

4839

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13964

Females

4499

F55-59

4499

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13833

Females

4539

F55-59

4539

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

13803

Females

4583

F55-59

4583

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

12111

Females

3804

F55-59

3804

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

13067

Females

4358

F55-59

4358

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12587

Females

4240

F55-59

4240

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11836

Females

3912

F55-59

3912

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

13119

Females

4507

F55-59

4507

Passing Analysis

Category:
Athletes Passed
2686
Passed By
1591
Net Change
+1095
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16204
5K → 10K278307-29#16204#16233
10K → 15K52935-883#16233#17116
15K → 20K31179+232#17116#16884
20K → Half3639-3#16884#16887
Half → 25K28350+233#16887#16654
25K → 30K41564+351#16654#16303
30K → 20M22518+207#16303#16096
20M → 21M22121+200#16096#15896
21M → 35K13511+124#15896#15772
35K → 23M23810+228#15772#15544
23M → 24M14316+127#15544#15417
24M → 40K15016+134#15417#15283
40K → 25.2M6611+55#15283#15228
25.2M → Finish13314+119#15228#15109
TOTALS26861591+1095
📊

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