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BOSTON MARATHON 2025

Marilyne Lamer

Bib: 13662•F

QC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 31%
Gender (Female)
#0 / 12228
Top 13%
Division (F18-39)
#0 / 5469
Top 24%
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
7:20/mi
22:46
↑ 97↓ 3451.5%
10K· 6.21 mi
7:17/mi
45:24
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:08:16
↑ 67↓ 78
20K· 12.43 mi
7:29/mi
1:31:31
↑ 106↓ 860.1%
Half· 13.11 mi
7:23/mi
1:36:33
↑ 19↓ 370.5%
25K· 15.53 mi
7:33/mi
1:54:51
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:18:50
↑ 181↓ 1480.2%
20M
7:38/mi
2:29:13
↑ 64↓ 500.2%
21M
7:55/mi
2:37:08
↑ 106↓ 241.6%
35K· 21.75 mi
7:09/mi
2:42:29
↑ 17↓ 861.7%
23M
7:33/mi
2:51:56
↑ 23↓ 630.6%
24M
7:14/mi
2:59:10
↓ 821.3%
40K· 24.85 mi
7:27/mi
3:05:32
↓ 200.3%
25.2M
7:20/mi
3:08:04
↑ 13↓ 160.2%
Finish· 26.22 mi
7:20/mi
3:15:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:33
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:38:59
Pace7:33 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5422:467:2022:46
7:20
-
10K
6.21 mi11:14:3245:247:1822:38
7:17
-0:03
15K
9.32 mi11:37:241:08:167:1922:52
7:22
+0:05
20K
12.43 mi12:00:391:31:317:2223:15
7:29
+0:07
Half
13.11 mi12:05:411:36:337:225:02
7:23
-0:06
25K
15.53 mi12:23:591:54:517:2418:18
7:33
+0:10
30K
18.64 mi12:47:582:18:507:2723:59
7:43
+0:10
20M
20.00 mi12:58:212:29:137:2810:23
7:38
-0:05
21M
21.00 mi13:06:162:37:087:297:55
7:55
+0:17
35K
21.75 mi13:11:372:42:297:285:21
7:09
-0:46
23M
23.00 mi13:21:042:51:567:299:27
7:33
+0:24
24M
24.00 mi13:28:182:59:107:287:14
7:14
-0:19
40K
24.85 mi13:34:403:05:327:286:22
7:27
+0:13
25.2M
25.20 mi13:37:123:08:047:282:32
7:20
-0:07
Finish
26.22 mi13:44:403:15:327:287:28
7:20
0:00

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

7:09 /mi

Average Pace

7:28 /mi

Slowest Pace

7:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:37

96% of race

Time at Steady Pace

7:55

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:27 /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 mi10:51:5422:467:2022:46
7:20
#10652
10K
6.21 mi11:14:3245:247:1822:38
7:17
#10400
15K
9.32 mi11:37:241:08:167:1922:52
7:22
#10432
20K
12.43 mi12:00:391:31:317:2223:15
7:29
#10441
Half
13.11 mi12:05:411:36:337:225:02
7:23
#10443
25K
15.53 mi12:23:591:54:517:2418:18
7:33
#10389
30K
18.64 mi12:47:582:18:507:2723:59
7:43
#10123
20M
20.00 mi12:58:212:29:137:2810:23
7:38
#9877
21M
21.00 mi13:06:162:37:087:297:55
7:55
#9664
35K
21.75 mi13:11:372:42:297:285:21
7:09
#9500
23M
23.00 mi13:21:042:51:567:299:27
7:33
#9285
24M
24.00 mi13:28:182:59:107:287:14
7:14
#9076
40K
24.85 mi13:34:403:05:327:286:22
7:27
#8924
25.2M
25.20 mi13:37:123:08:047:282:32
7:20
#8775
Finish
26.22 mi13:44:403:15:327:287:28
7:20
#8726
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi106522109210910501(Top 37%)2117(Top 17%)2117(Top 39%)
10K6.21 mi3.10 mi10400+2522007+1022007+10210236(Top 36%)1929(Top 16%)1929(Top 35%)
15K9.32 mi3.11 mi10432-322046-392046-3910501(Top 37%)2117(Top 17%)2117(Top 39%)
20K12.43 mi3.11 mi10441-92069-232069-2310617(Top 37%)2267(Top 19%)2267(Top 41%)
Half13.11 mi0.68 mi10443-22079-102079-1010693(Top 38%)2258(Top 18%)2258(Top 41%)
25K15.53 mi2.42 mi10389+542078+12078+110350(Top 36%)2254(Top 18%)2254(Top 41%)
30K18.64 mi3.11 mi10123+2662022+562022+569329(Top 33%)1970(Top 16%)1970(Top 36%)
20M20.00 mi1.36 mi9877+2461930+921930+928000(Top 28%)1543(Top 13%)1543(Top 28%)
21M21.00 mi1.00 mi9664+2131866+641866+646919(Top 24%)1277(Top 10%)1277(Top 23%)
35K21.75 mi0.75 mi9500+1641812+541812+546353(Top 22%)1061(Top 9%)1061(Top 19%)
23M23.00 mi1.25 mi9285+2151762+501762+506934(Top 24%)1372(Top 11%)1372(Top 25%)
24M24.00 mi1.00 mi9076+2091700+621700+626060(Top 21%)1095(Top 9%)1095(Top 20%)
40K24.85 mi0.85 mi8924+1521678+221678+226519(Top 23%)1347(Top 11%)1347(Top 25%)
25.2M25.20 mi0.35 mi8775+1491640+381640+382623(Top 9%)285(Top 2%)285(Top 5%)
Finish26.22 mi1.02 mi8726+491642-21642-28015(Top 28%)2090(Top 17%)2090(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10501

Females

2117

F18-39

2117

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

10236

Females

1929

F18-39

1929

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10501

Females

2117

F18-39

2117

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

10617

Females

2267

F18-39

2267

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10693

Females

2258

F18-39

2258

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

10350

Females

2254

F18-39

2254

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

9329

Females

1970

F18-39

1970

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

8000

Females

1543

F18-39

1543

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6919

Females

1277

F18-39

1277

21M→35K

21.0 - 21.8 mi

Top 22%
×7story building
+17ft-86ft

Overall

6353

Females

1061

F18-39

1061

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6934

Females

1372

F18-39

1372

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

6060

Females

1095

F18-39

1095

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6519

Females

1347

F18-39

1347

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2623

Females

285

F18-39

285

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

8015

Females

2090

F18-39

2090

Passing Analysis

Category:
Athletes Passed
2812*
Passed By
884
Net Change
+1926
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10652
5K → 10K392140+252#10652#10400
10K → 15K157189-32#10400#10432
15K → 20K178186-9#10432#10441
20K → Half3739-2#10441#10443
Half → 25K176122+54#10443#10389
25K → 30K36497+266#10389#10123
30K → 20M255*9+246#10123#9877
20M → 21M22512+213#9877#9664
21M → 35K1651+164#9664#9500
35K → 23M23116+215#9500#9285
23M → 24M2145+209#9285#9076
24M → 40K16917+152#9076#8924
40K → 25.2M1490+149#8924#8775
25.2M → Finish10051+49#8775#8726
TOTALS2812*884+1926

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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