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BOSTON MARATHON 2025

Marlene Buecker

Bib: 14418•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 46%
Gender (Female)
#0 / 12228
Top 31%
Division (F18-39)
#0 / 5469
Top 49%
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
7:24/mi
22:59
↑ 97↓ 3451.5%
10K· 6.21 mi
7:28/mi
46:10
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:09:37
↑ 67↓ 78
20K· 12.43 mi
7:40/mi
1:33:26
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:38:38
↑ 19↓ 370.5%
25K· 15.53 mi
7:53/mi
1:57:45
↑ 66↓ 880.2%
30K· 18.64 mi
8:19/mi
2:23:34
↑ 181↓ 1480.2%
20M
8:27/mi
2:35:03
↑ 64↓ 500.2%
21M
9:12/mi
2:44:15
↑ 106↓ 241.6%
35K· 21.75 mi
8:24/mi
2:50:32
↑ 17↓ 861.7%
23M
8:52/mi
3:01:38
↑ 23↓ 630.6%
24M
9:00/mi
3:10:38
↓ 821.3%
40K· 24.85 mi
9:07/mi
3:18:26
↓ 200.3%
25.2M
8:51/mi
3:21:29
↑ 13↓ 160.2%
Finish· 26.22 mi
7:37/mi
3:29:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:38
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:50:37
Pace8:26 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:5722:597:2422:59
7:24
-
10K
6.21 mi11:17:0846:107:2623:11
7:28
+0:04
15K
9.32 mi11:40:351:09:377:2823:27
7:33
+0:05
20K
12.43 mi12:04:241:33:267:3123:49
7:40
+0:07
Half
13.11 mi12:09:361:38:387:315:12
7:37
-0:03
25K
15.53 mi12:28:431:57:457:3519:07
7:53
+0:16
30K
18.64 mi12:54:322:23:347:4225:49
8:19
+0:26
20M
20.00 mi13:06:012:35:037:4511:29
8:27
+0:08
21M
21.00 mi13:15:132:44:157:499:12
9:12
+0:45
35K
21.75 mi13:21:302:50:327:506:17
8:24
-0:48
23M
23.00 mi13:32:363:01:387:5411:06
8:52
+0:28
24M
24.00 mi13:41:363:10:387:579:00
9:00
+0:08
40K
24.85 mi13:49:243:18:267:597:48
9:07
+0:07
25.2M
25.20 mi13:52:273:21:298:003:03
8:51
-0:16
Finish
26.22 mi14:00:133:29:157:597:46
7:37
-1:14

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

7:24 /mi

Average Pace

7:59 /mi

Slowest Pace

9:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:31

60% of race

Time at Steady Pace

43:35

21% of race

Time at Slower Pace

40:09

19% of race

Average Pace: 7:59 /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 mi10:53:5722:597:2422:59
7:24
#11323
10K
6.21 mi11:17:0846:107:2623:11
7:28
#11531
15K
9.32 mi11:40:351:09:377:2823:27
7:33
#11706
20K
12.43 mi12:04:241:33:267:3123:49
7:40
#11797
Half
13.11 mi12:09:361:38:387:315:12
7:37
#11848
25K
15.53 mi12:28:431:57:457:3519:07
7:53
#12010
30K
18.64 mi12:54:322:23:347:4225:49
8:19
#12284
20M
20.00 mi13:06:012:35:037:4511:29
8:27
#12355
21M
21.00 mi13:15:132:44:157:499:12
9:12
#12473
35K
21.75 mi13:21:302:50:327:506:17
8:24
#12552
23M
23.00 mi13:32:363:01:387:5411:06
8:52
#12741
24M
24.00 mi13:41:363:10:387:579:00
9:00
#12985
40K
24.85 mi13:49:243:18:267:597:48
9:07
#13143
25.2M
25.20 mi13:52:273:21:298:003:03
8:51
#13102
Finish
26.22 mi14:00:133:29:157:597:46
7:37
#12994
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi113232446244612187(Top 43%)3014(Top 25%)3014(Top 55%)
10K6.21 mi3.10 mi11531-2082575-1292575-12911755(Top 41%)2697(Top 22%)2697(Top 49%)
15K9.32 mi3.11 mi11706-1752676-1012676-10112187(Top 43%)3014(Top 25%)3014(Top 55%)
20K12.43 mi3.11 mi11797-912762-862762-8612126(Top 43%)3068(Top 25%)3068(Top 56%)
Half13.11 mi0.68 mi11848-512804-422804-4212838(Top 45%)3417(Top 28%)3417(Top 62%)
25K15.53 mi2.42 mi12010-1622927-1232927-12313002(Top 46%)3674(Top 30%)3674(Top 67%)
30K18.64 mi3.11 mi12284-2743151-2243151-22413573(Top 48%)4130(Top 34%)4130(Top 76%)
20M20.00 mi1.36 mi12355-713224-733224-7313482(Top 47%)4233(Top 35%)4233(Top 77%)
21M21.00 mi1.00 mi12473-1183326-1023326-10214638(Top 52%)4956(Top 41%)4956(Top 91%)
35K21.75 mi0.75 mi12552-793393-673393-6714859(Top 52%)5148(Top 42%)5148(Top 94%)
23M23.00 mi1.25 mi12741-1893524-1313524-13115485(Top 55%)5587(Top 46%)5587(Top 102%)
24M24.00 mi1.00 mi12985-2443695-1713695-17117370(Top 61%)6683(Top 55%)6683(Top 122%)
40K24.85 mi0.85 mi13143-1583807-1123807-11216973(Top 60%)6556(Top 54%)6556(Top 120%)
25.2M25.20 mi0.35 mi13102+413797+103797+1011001(Top 39%)3495(Top 29%)3495(Top 64%)
Finish26.22 mi1.02 mi12994+1083754+433754+4310150(Top 36%)3070(Top 25%)3070(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

12187

Females

3014

F18-39

3014

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

11755

Females

2697

F18-39

2697

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

12187

Females

3014

F18-39

3014

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

12126

Females

3068

F18-39

3068

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12838

Females

3417

F18-39

3417

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

13002

Females

3674

F18-39

3674

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

13573

Females

4130

F18-39

4130

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

13482

Females

4233

F18-39

4233

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

14638

Females

4956

F18-39

4956

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

14859

Females

5148

F18-39

5148

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15485

Females

5587

F18-39

5587

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

17370

Females

6683

F18-39

6683

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16973

Females

6556

F18-39

6556

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11001

Females

3495

F18-39

3495

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

10150

Females

3070

F18-39

3070

Passing Analysis

Category:
Athletes Passed
1264
Passed By
2935
Net Change
-1671
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11323
5K → 10K165373-208#11323#11531
10K → 15K123298-175#11531#11706
15K → 20K161252-91#11706#11797
20K → Half2273-51#11797#11848
Half → 25K116278-162#11848#12010
25K → 30K160434-274#12010#12284
30K → 20M91162-71#12284#12355
20M → 21M70188-118#12355#12473
21M → 35K49128-79#12473#12552
35K → 23M61250-189#12552#12741
23M → 24M29273-244#12741#12985
24M → 40K41199-158#12985#13143
40K → 25.2M5312+41#13143#13102
25.2M → Finish12315+108#13102#12994
TOTALS12642935-1671
📊

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