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BOSTON MARATHON 2025

Laura Smith

Bib: 20578•F

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 46%
Masters (Masters Women)
#0 / 6759
Top 34%
Division (F40-44)
#0 / 1718
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
7:49/mi
24:17
↑ 97↓ 3451.5%
10K· 6.21 mi
7:52/mi
48:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:51/mi
1:13:04
↑ 67↓ 78
20K· 12.43 mi
7:56/mi
1:37:43
↑ 106↓ 860.1%
Half· 13.11 mi
7:53/mi
1:43:06
↑ 19↓ 370.5%
25K· 15.53 mi
8:07/mi
2:02:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:49/mi
2:30:10
↑ 181↓ 1480.2%
20M
10:03/mi
2:43:50
↑ 64↓ 500.2%
21M
10:27/mi
2:54:17
↑ 106↓ 241.6%
35K· 21.75 mi
8:32/mi
3:00:40
↑ 17↓ 861.7%
23M
9:16/mi
3:12:16
↑ 23↓ 630.6%
24M
9:10/mi
3:21:26
↓ 821.3%
40K· 24.85 mi
9:40/mi
3:29:42
↓ 200.3%
25.2M
10:44/mi
3:33:24
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:41:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:06
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:58:50
Pace9:04 /mi
📊Positive Split: 15.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5624:177:4924:17
7:49
-
10K
6.21 mi11:41:2148:427:5024:25
7:52
+0:03
15K
9.32 mi12:05:431:13:047:5024:22
7:51
-0:01
20K
12.43 mi12:30:221:37:437:5224:39
7:56
+0:05
Half
13.11 mi12:35:451:43:067:525:23
7:53
-0:03
25K
15.53 mi12:55:262:02:477:5419:41
8:07
+0:14
30K
18.64 mi13:22:492:30:108:0327:23
8:49
+0:42
20M
20.00 mi13:36:292:43:508:1113:40
10:03
+1:14
21M
21.00 mi13:46:562:54:178:1810:27
10:27
+0:24
35K
21.75 mi13:53:193:00:408:186:23
8:32
-1:55
23M
23.00 mi14:04:553:12:168:2211:36
9:16
+0:44
24M
24.00 mi14:14:053:21:268:249:10
9:10
-0:06
40K
24.85 mi14:22:213:29:428:268:16
9:40
+0:30
25.2M
25.20 mi14:26:033:33:248:283:42
10:44
+1:04
Finish
26.22 mi14:34:353:41:568:288:32
8:22
-2:22

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

7:49 /mi

Average Pace

8:28 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:06

46% of race

Time at Steady Pace

1:01:59

28% of race

Time at Slower Pace

56:51

26% of race

Average Pace: 8:28 /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 mi11:16:5624:177:4924:17
7:49
#14975
10K
6.21 mi11:41:2148:427:5024:25
7:52
#15133
15K
9.32 mi12:05:431:13:047:5024:22
7:51
#14994
20K
12.43 mi12:30:221:37:437:5224:39
7:56
#14786
Half
13.11 mi12:35:451:43:067:525:23
7:53
#14787
25K
15.53 mi12:55:262:02:477:5419:41
8:07
#14755
30K
18.64 mi13:22:492:30:108:0327:23
8:49
#15180
20M
20.00 mi13:36:292:43:508:1113:40
10:03
#15799
21M
21.00 mi13:46:562:54:178:1810:27
10:27
#16075
35K
21.75 mi13:53:193:00:408:186:23
8:32
#16031
23M
23.00 mi14:04:553:12:168:2211:36
9:16
#16078
24M
24.00 mi14:14:053:21:268:249:10
9:10
#16168
40K
24.85 mi14:22:213:29:428:268:16
9:40
#16320
25.2M
25.20 mi14:26:033:33:248:283:42
10:44
#16399
Finish
26.22 mi14:34:353:41:568:288:32
8:22
#16344
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi149754516451614767(Top 52%)4459(Top 36%)4459(Top 260%)
10K6.21 mi3.10 mi15133-1584626-1104626-11015360(Top 54%)4762(Top 39%)4762(Top 277%)
15K9.32 mi3.11 mi14994+1394554+724554+7214767(Top 52%)4459(Top 36%)4459(Top 260%)
20K12.43 mi3.11 mi14786+2084467+874467+8714418(Top 51%)4329(Top 35%)4329(Top 252%)
Half13.11 mi0.68 mi14787-14466+14466+115112(Top 53%)4695(Top 38%)4695(Top 273%)
25K15.53 mi2.42 mi14755+324477-114477-1114780(Top 52%)4636(Top 38%)4636(Top 270%)
30K18.64 mi3.11 mi15180-4254765-2884765-28816684(Top 59%)5849(Top 48%)5849(Top 340%)
20M20.00 mi1.36 mi15799-6195153-3885153-38821145(Top 74%)8435(Top 69%)8435(Top 491%)
21M21.00 mi1.00 mi16075-2765341-1885341-18819848(Top 70%)7819(Top 64%)7819(Top 455%)
35K21.75 mi0.75 mi16031+445341534115701(Top 55%)5619(Top 46%)5619(Top 327%)
23M23.00 mi1.25 mi16078-475399-585399-5817631(Top 62%)6803(Top 56%)6803(Top 396%)
24M24.00 mi1.00 mi16168-905478-795478-7918195(Top 64%)7134(Top 58%)7134(Top 415%)
40K24.85 mi0.85 mi16320-1525591-1135591-11319356(Top 68%)7808(Top 64%)7808(Top 454%)
25.2M25.20 mi0.35 mi16399-795642-515642-5119831(Top 70%)8059(Top 66%)8059(Top 469%)
Finish26.22 mi1.02 mi16344+555633+95633+915418(Top 54%)5707(Top 47%)5707(Top 332%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14767

Females

4459

F40-44

4459

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15360

Females

4762

F40-44

4762

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14767

Females

4459

F40-44

4459

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14418

Females

4329

F40-44

4329

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

15112

Females

4695

F40-44

4695

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14780

Females

4636

F40-44

4636

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

16684

Females

5849

F40-44

5849

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

21145

Females

8435

F40-44

8435

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19848

Females

7819

F40-44

7819

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15701

Females

5619

F40-44

5619

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

17631

Females

6803

F40-44

6803

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

18195

Females

7134

F40-44

7134

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19356

Females

7808

F40-44

7808

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19831

Females

8059

F40-44

8059

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15418

Females

5707

F40-44

5707

Passing Analysis

Category:
Athletes Passed
1592
Passed By
2961
Net Change
-1369
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14975
5K → 10K220378-158#14975#15133
10K → 15K272133+139#15133#14994
15K → 20K30799+208#14994#14786
20K → Half3334-1#14786#14787
Half → 25K190158+32#14787#14755
25K → 30K134559-425#14755#15180
30K → 20M24643-619#15180#15799
20M → 21M43319-276#15799#16075
21M → 35K8743+44#16075#16031
35K → 23M101148-47#16031#16078
23M → 24M44134-90#16078#16168
24M → 40K26178-152#16168#16320
40K → 25.2M1190-79#16320#16399
25.2M → Finish10045+55#16399#16344
TOTALS15922961-1369
📊

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