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BOSTON MARATHON 2025

Lauren Planas

Bib: 29731•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 43%
Division (F18-39)
#0 / 5469
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
8:22/mi
25:59
↑ 97↓ 3451.5%
10K· 6.21 mi
8:06/mi
51:10
↑ 79↓ 1380.4%
15K· 9.32 mi
8:17/mi
1:16:53
↑ 67↓ 78
20K· 12.43 mi
8:09/mi
1:42:12
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:47:21
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:07:04
↑ 66↓ 880.2%
30K· 18.64 mi
8:25/mi
2:33:14
↑ 181↓ 1480.2%
20M
9:01/mi
2:45:29
↑ 64↓ 500.2%
21M
8:53/mi
2:54:22
↑ 106↓ 241.6%
35K· 21.75 mi
8:23/mi
3:00:38
↑ 17↓ 861.7%
23M
8:54/mi
3:11:46
↑ 23↓ 630.6%
24M
8:33/mi
3:20:19
↓ 821.3%
40K· 24.85 mi
8:47/mi
3:27:50
↓ 200.3%
25.2M
9:46/mi
3:31:12
↑ 13↓ 160.2%
Finish· 26.22 mi
7:44/mi
3:39:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:21
Pace8:11 /mi
2nd Half
Distance13.11 mi
Time1:51:44
Pace8:31 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5625:598:2225:59
8:22
-
10K
6.21 mi12:10:0751:108:1425:11
8:06
-0:16
15K
9.32 mi12:35:501:16:538:1525:43
8:17
+0:11
20K
12.43 mi13:01:091:42:128:1325:19
8:09
-0:08
Half
13.11 mi13:06:181:47:218:115:09
7:33
-0:36
25K
15.53 mi13:26:012:07:048:1119:43
8:08
+0:35
30K
18.64 mi13:52:112:33:148:1326:10
8:25
+0:17
20M
20.00 mi14:04:262:45:298:1612:15
9:01
+0:36
21M
21.00 mi14:13:192:54:228:188:53
8:53
-0:08
35K
21.75 mi14:19:353:00:388:186:16
8:23
-0:30
23M
23.00 mi14:30:433:11:468:2011:08
8:54
+0:31
24M
24.00 mi14:39:163:20:198:218:33
8:33
-0:21
40K
24.85 mi14:46:473:27:508:227:31
8:47
+0:14
25.2M
25.20 mi14:50:093:31:128:233:22
9:46
+0:59
Finish
26.22 mi14:58:023:39:058:227:53
7:44
-2:02

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

7:33 /mi

Average Pace

8:22 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:13

17% of race

Time at Steady Pace

2:17:43

63% of race

Time at Slower Pace

43:09

20% of race

Average Pace: 8:21 /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 mi11:44:5625:598:2225:59
8:22
#19094
10K
6.21 mi12:10:0751:108:1425:11
8:06
#18202
15K
9.32 mi12:35:501:16:538:1525:43
8:17
#18093
20K
12.43 mi13:01:091:42:128:1325:19
8:09
#17507
Half
13.11 mi13:06:181:47:218:115:09
7:33
#17258
25K
15.53 mi13:26:012:07:048:1119:43
8:08
#16834
30K
18.64 mi13:52:112:33:148:1326:10
8:25
#16345
20M
20.00 mi14:04:262:45:298:1612:15
9:01
#16332
21M
21.00 mi14:13:192:54:228:188:53
8:53
#16100
35K
21.75 mi14:19:353:00:388:186:16
8:23
#16019
23M
23.00 mi14:30:433:11:468:2011:08
8:54
#15941
24M
24.00 mi14:39:163:20:198:218:33
8:33
#15880
40K
24.85 mi14:46:473:27:508:227:31
8:47
#15829
25.2M
25.20 mi14:50:093:31:128:233:22
9:46
#15823
Finish
26.22 mi14:58:023:39:058:227:53
7:44
#15641
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi190946955695517898(Top 63%)6251(Top 51%)6251(Top 114%)
10K6.21 mi3.10 mi18202+8926451+5046451+50417245(Top 61%)5849(Top 48%)5849(Top 107%)
15K9.32 mi3.11 mi18093+1096384+676384+6717898(Top 63%)6251(Top 51%)6251(Top 114%)
20K12.43 mi3.11 mi17507+5866034+3506034+35015985(Top 56%)5204(Top 43%)5204(Top 95%)
Half13.11 mi0.68 mi17258+2495900+1345900+13412241(Top 43%)3102(Top 25%)3102(Top 57%)
25K15.53 mi2.42 mi16834+4245664+2365664+23614865(Top 52%)4683(Top 38%)4683(Top 86%)
30K18.64 mi3.11 mi16345+4895438+2265438+22614288(Top 50%)4530(Top 37%)4530(Top 83%)
20M20.00 mi1.36 mi16332+135452-145452-1416867(Top 59%)6066(Top 50%)6066(Top 111%)
21M21.00 mi1.00 mi16100+2325356+965356+9612860(Top 45%)4057(Top 33%)4057(Top 74%)
35K21.75 mi0.75 mi16019+815333+235333+2314757(Top 52%)5106(Top 42%)5106(Top 93%)
23M23.00 mi1.25 mi15941+785336-35336-315646(Top 55%)5688(Top 47%)5688(Top 104%)
24M24.00 mi1.00 mi15880+615310+265310+2614843(Top 52%)5298(Top 43%)5298(Top 97%)
40K24.85 mi0.85 mi15829+515305+55305+515162(Top 53%)5606(Top 46%)5606(Top 103%)
25.2M25.20 mi0.35 mi15823+65315-105315-1015953(Top 56%)6058(Top 50%)6058(Top 111%)
Finish26.22 mi1.02 mi15641+1825236+795236+7911020(Top 39%)3488(Top 29%)3488(Top 64%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

17898

Females

6251

F18-39

6251

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17245

Females

5849

F18-39

5849

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

17898

Females

6251

F18-39

6251

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

15985

Females

5204

F18-39

5204

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12241

Females

3102

F18-39

3102

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14865

Females

4683

F18-39

4683

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

14288

Females

4530

F18-39

4530

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

16867

Females

6066

F18-39

6066

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12860

Females

4057

F18-39

4057

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

14757

Females

5106

F18-39

5106

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15646

Females

5688

F18-39

5688

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

14843

Females

5298

F18-39

5298

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15162

Females

5606

F18-39

5606

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15953

Females

6058

F18-39

6058

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

11020

Females

3488

F18-39

3488

Passing Analysis

Category:
Athletes Passed
4008
Passed By
555
Net Change
+3453
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19094
5K → 10K93846+892#19094#18202
10K → 15K239130+109#18202#18093
15K → 20K60014+586#18093#17507
20K → Half2490+249#17507#17258
Half → 25K4339+424#17258#16834
25K → 30K52637+489#16834#16345
30K → 20M116103+13#16345#16332
20M → 21M24210+232#16332#16100
21M → 35K10827+81#16100#16019
35K → 23M14264+78#16019#15941
23M → 24M10039+61#15941#15880
24M → 40K9544+51#15880#15829
40K → 25.2M3125+6#15829#15823
25.2M → Finish1897+182#15823#15641
TOTALS4008555+3453
📊

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