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BOSTON MARATHON 2025

Laura Nowak

ON

Bib: 15669 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 40%
Gender (Female)
#0 / 12228
Top 24%
Division (F18-39)
#0 / 5469
Top 41%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:56/mi
24:40
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:43/mi
48:38
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:37/mi
1:12:17
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:35/mi
1:35:52
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:31/mi
1:41:00
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:32/mi
1:59:15
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:24/mi
2:25:21
↑ 181↓ 1480.2%
138 ft elev
20M
7:53/mi
2:36:04
↑ 64↓ 500.2%
148 ft elev
21M
8:33/mi
2:44:37
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:51/mi
2:50:29
↑ 17↓ 861.7%
156 ft elev
23M
7:54/mi
3:00:22
↑ 23↓ 630.6%
116 ft elev
24M
7:21/mi
3:07:43
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:22/mi
3:14:01
↓ 200.3%
20 ft elev
25.2M
8:13/mi
3:16:51
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:06/mi
3:24:05
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:41:007:42 /mi⚡ faster
2nd Half
1:43:057:52 /mi+2.1%
Positive split — 2.1% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:407:563.11 mi24:40
7:56
-
10K
48:387:503.10 mi23:58
7:43
-0:13
15K
1:12:177:453.11 mi23:39
7:37
-0:06
20K
1:35:527:433.11 mi23:35
7:35
-0:02
Half(13.11 mi)
1:41:007:420.68 mi5:08
7:31
-0:04
25K
1:59:157:412.42 mi18:15
7:32
+0:01
30K
2:25:217:483.11 mi26:06
8:24
+0:52
20M
2:36:047:481.36 mi10:43
7:53
-0:31
21M
2:44:377:501.00 mi8:33
8:33
+0:40
35K
2:50:297:500.75 mi5:52
7:51
-0:42
23M
3:00:227:511.25 mi9:53
7:54
+0:03
24M
3:07:437:491.00 mi7:21
7:21
-0:33
40K
3:14:017:480.85 mi6:18
7:22
+0:01
25.2M
3:16:517:490.35 mi2:50
8:13
+0:51
Finish(26.22 mi)
3:24:057:471.02 mi7:14
7:06
-1:07
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:06 /mi

Average Pace

7:47 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

26:01

13% of race

Time at Steady Pace

1:55:55

57% of race

Time at Slower Pace

1:02:09

30% of race

Average Pace: 7:47 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi16096519851981270432763276
10K3.10 mi15018+10784558+6404558+6401403139713971
15K3.11 mi14250+7684112+4464112+4461270432763276
20K3.11 mi13491+7593723+3893723+3891153127562756
Half(13.11 mi)0.68 mi13397+943667+563667+561196329132913
25K2.42 mi12812+5853368+2993368+2991021121972197
30K3.11 mi13056-2443583-2153583-2151415144554455
20M1.36 mi12755+3013448+1353448+135965622902290
21M1.00 mi12613+1423394+543394+541081830053005
35K0.75 mi12531+823378+163378+161115231783178
23M1.25 mi12298+2333296+823296+82927223882388
24M1.00 mi12022+2763185+1113185+111676713761376
40K0.85 mi11741+2813066+1193066+119607111791179
25.2M0.35 mi11644+973031+353031+35726417801780
Finish(26.22 mi)1.02 mi11362+2822930+1012930+101641114121412

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

12704

Females

3276

F18-39

3276

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

14031

Females

3971

F18-39

3971

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

12704

Females

3276

F18-39

3276

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11531

Females

2756

F18-39

2756

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11963

Females

2913

F18-39

2913

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

10211

Females

2197

F18-39

2197

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

14151

Females

4455

F18-39

4455

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9656

Females

2290

F18-39

2290

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10818

Females

3005

F18-39

3005

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

11152

Females

3178

F18-39

3178

35K→23M

21.8 - 23.0 mi

Top 33%
×5story building
+23ft-63ft

Overall

9272

Females

2388

F18-39

2388

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6767

Females

1376

F18-39

1376

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

6071

Females

1179

F18-39

1179

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7264

Females

1780

F18-39

1780

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6411

Females

1412

F18-39

1412

Passing Analysis

Category:
Passed
5301
Passed By
567
Net Change
+4734
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16096
5K → 10K111739+1078#16096#15018
10K → 15K77810+768#15018#14250
15K → 20K7623+759#14250#13491
20K → Half995+94#13491#13397
Half → 25K5905+585#13397#12812
25K → 30K169413-244#12812#13056
30K → 20M3065+301#13056#12755
20M → 21M18341+142#12755#12613
21M → 35K10624+82#12613#12531
35K → 23M2429+233#12531#12298
23M → 24M2760+276#12298#12022
24M → 40K2821+281#12022#11741
40K → 25.2M1014+97#11741#11644
25.2M → Finish2908+282#11644#11362
TOTALS5301567+4734

Passing Charts

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