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BOSTON MARATHON 2025

Lauren Nelson

Bib: 24674•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Top 39%
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
8:32/mi
26:32
↑ 97↓ 3451.5%
10K· 6.21 mi
8:32/mi
53:03
↑ 79↓ 1380.4%
15K· 9.32 mi
8:39/mi
1:19:55
↑ 67↓ 78
20K· 12.43 mi
8:55/mi
1:47:36
↑ 106↓ 860.1%
Half· 13.11 mi
8:54/mi
1:53:40
↑ 19↓ 370.5%
25K· 15.53 mi
9:18/mi
2:16:14
↑ 66↓ 880.2%
30K· 18.64 mi
9:48/mi
2:46:42
↑ 181↓ 1480.2%
20M
9:40/mi
2:59:50
↑ 64↓ 500.2%
21M
10:21/mi
3:10:11
↑ 106↓ 241.6%
35K· 21.75 mi
8:56/mi
3:16:52
↑ 17↓ 861.7%
23M
9:03/mi
3:28:12
↑ 23↓ 630.6%
24M
8:47/mi
3:36:59
↓ 821.3%
40K· 24.85 mi
8:50/mi
3:44:32
↓ 200.3%
25.2M
9:54/mi
3:47:57
↑ 13↓ 160.2%
Finish· 26.22 mi
8:39/mi
3:56:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:40
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time2:03:06
Pace9:23 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:4926:328:3226:32
8:32
-
10K
6.21 mi11:53:2053:038:3226:31
8:32
0:00
15K
9.32 mi12:20:121:19:558:3426:52
8:39
+0:07
20K
12.43 mi12:47:531:47:368:3927:41
8:55
+0:16
Half
13.11 mi12:53:571:53:408:406:04
8:54
-0:01
25K
15.53 mi13:16:312:16:148:4622:34
9:18
+0:24
30K
18.64 mi13:46:592:46:428:5730:28
9:48
+0:30
20M
20.00 mi14:00:072:59:508:5913:08
9:40
-0:08
21M
21.00 mi14:10:283:10:119:0310:21
10:21
+0:41
35K
21.75 mi14:17:093:16:529:036:41
8:56
-1:25
23M
23.00 mi14:28:293:28:129:0311:20
9:03
+0:07
24M
24.00 mi14:37:163:36:599:028:47
8:47
-0:16
40K
24.85 mi14:44:493:44:329:027:33
8:50
+0:03
25.2M
25.20 mi14:48:143:47:579:033:25
9:54
+1:04
Finish
26.22 mi14:57:033:56:469:028:49
8:39
-1:15

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

8:32 /mi

Average Pace

9:02 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

53:03

22% of race

Time at Steady Pace

1:43:47

44% of race

Time at Slower Pace

1:19:56

34% of race

Average Pace: 9:02 /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 mi11:26:4926:328:3226:32
8:32
#20147
10K
6.21 mi11:53:2053:038:3226:31
8:32
#20064
15K
9.32 mi12:20:121:19:558:3426:52
8:39
#20103
20K
12.43 mi12:47:531:47:368:3927:41
8:55
#20183
Half
13.11 mi12:53:571:53:408:406:04
8:54
#20244
25K
15.53 mi13:16:312:16:148:4622:34
9:18
#20468
30K
18.64 mi13:46:592:46:428:5730:28
9:48
#20586
20M
20.00 mi14:00:072:59:508:5913:08
9:40
#20514
21M
21.00 mi14:10:283:10:119:0310:21
10:21
#20460
35K
21.75 mi14:17:093:16:529:036:41
8:56
#20351
23M
23.00 mi14:28:293:28:129:0311:20
9:03
#20148
24M
24.00 mi14:37:163:36:599:028:47
8:47
#20001
40K
24.85 mi14:44:493:44:329:027:33
8:50
#19835
25.2M
25.20 mi14:48:143:47:579:033:25
9:54
#19795
Finish
26.22 mi14:57:033:56:469:028:49
8:39
#19696
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi201477588758820204(Top 71%)7547(Top 62%)7547(Top 759%)
10K6.21 mi3.10 mi20064+837508+807508+8020011(Top 70%)7471(Top 61%)7471(Top 752%)
15K9.32 mi3.11 mi20103-397528-207528-2020204(Top 71%)7547(Top 62%)7547(Top 759%)
20K12.43 mi3.11 mi20183-807581-537581-5320533(Top 72%)7790(Top 64%)7790(Top 784%)
Half13.11 mi0.68 mi20244-617623-427623-4221364(Top 75%)8225(Top 67%)8225(Top 827%)
25K15.53 mi2.42 mi20468-2247755-1327755-13221217(Top 75%)8210(Top 67%)8210(Top 826%)
30K18.64 mi3.11 mi20586-1187861-1067861-10621021(Top 74%)8239(Top 67%)8239(Top 829%)
20M20.00 mi1.36 mi20514+727838+237838+2319830(Top 70%)7688(Top 63%)7688(Top 773%)
21M21.00 mi1.00 mi20460+547834+47834+419553(Top 69%)7654(Top 63%)7654(Top 770%)
35K21.75 mi0.75 mi20351+1097786+487786+4817963(Top 63%)6889(Top 56%)6889(Top 693%)
23M23.00 mi1.25 mi20148+2037702+847702+8416587(Top 58%)6228(Top 51%)6228(Top 627%)
24M24.00 mi1.00 mi20001+1477641+617641+6116269(Top 57%)6095(Top 50%)6095(Top 613%)
40K24.85 mi0.85 mi19835+1667576+657576+6515414(Top 54%)5771(Top 47%)5771(Top 581%)
25.2M25.20 mi0.35 mi19795+407557+197557+1916679(Top 59%)6447(Top 53%)6447(Top 649%)
Finish26.22 mi1.02 mi19696+997516+417516+4117212(Top 61%)6674(Top 55%)6674(Top 671%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

20204

Females

7547

F55-59

7547

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

20011

Females

7471

F55-59

7471

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

20204

Females

7547

F55-59

7547

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20533

Females

7790

F55-59

7790

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21364

Females

8225

F55-59

8225

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

21217

Females

8210

F55-59

8210

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

21021

Females

8239

F55-59

8239

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19830

Females

7688

F55-59

7688

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

19553

Females

7654

F55-59

7654

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17963

Females

6889

F55-59

6889

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

16587

Females

6228

F55-59

6228

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16269

Females

6095

F55-59

6095

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15414

Females

5771

F55-59

5771

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16679

Females

6447

F55-59

6447

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

17212

Females

6674

F55-59

6674

Passing Analysis

Category:
Athletes Passed
2001
Passed By
1550
Net Change
+451
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20147
5K → 10K321238+83#20147#20064
10K → 15K170209-39#20064#20103
15K → 20K157237-80#20103#20183
20K → Half1677-61#20183#20244
Half → 25K91315-224#20244#20468
25K → 30K192310-118#20468#20586
30K → 20M13361+72#20586#20514
20M → 21M10955+54#20514#20460
21M → 35K1167+109#20460#20351
35K → 23M21411+203#20351#20148
23M → 24M1536+147#20148#20001
24M → 40K1682+166#20001#19835
40K → 25.2M444+40#19835#19795
25.2M → Finish11718+99#19795#19696
TOTALS20011550+451
📊

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