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BOSTON MARATHON 2025

Nikki Howley

Bib: 15574•F

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 31%
Gender (Female)
#0 / 12228
Top 14%
Masters (Masters Women)
#0 / 6759
Top 5%
Division (F50-54)
#0 / 1303
Top 2%
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
7:25/mi
23:02
↑ 97↓ 3451.5%
10K· 6.21 mi
7:16/mi
45:37
↑ 79↓ 1380.4%
15K· 9.32 mi
7:16/mi
1:08:12
↑ 67↓ 78
20K· 12.43 mi
7:21/mi
1:31:01
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:36:01
↑ 19↓ 370.5%
25K· 15.53 mi
7:22/mi
1:53:53
↑ 66↓ 880.2%
30K· 18.64 mi
7:37/mi
2:17:33
↑ 181↓ 1480.2%
20M
7:44/mi
2:28:03
↑ 64↓ 500.2%
21M
8:04/mi
2:36:07
↑ 106↓ 241.6%
35K· 21.75 mi
7:41/mi
2:41:52
↑ 17↓ 861.7%
23M
7:43/mi
2:51:32
↑ 23↓ 630.6%
24M
7:32/mi
2:59:04
↓ 821.3%
40K· 24.85 mi
7:43/mi
3:05:40
↓ 200.3%
25.2M
7:58/mi
3:08:25
↑ 13↓ 160.2%
Finish· 26.22 mi
7:07/mi
3:15:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:01
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:39:39
Pace7:36 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:3623:027:2523:02
7:25
-
10K
6.21 mi11:18:1145:377:2022:35
7:16
-0:09
15K
9.32 mi11:40:461:08:127:1922:35
7:16
0:00
20K
12.43 mi12:03:351:31:017:1922:49
7:21
+0:05
Half
13.11 mi12:08:351:36:017:195:00
7:20
-0:01
25K
15.53 mi12:26:271:53:537:2017:52
7:22
+0:02
30K
18.64 mi12:50:072:17:337:2323:40
7:37
+0:15
20M
20.00 mi13:00:372:28:037:2410:30
7:44
+0:07
21M
21.00 mi13:08:412:36:077:268:04
8:04
+0:20
35K
21.75 mi13:14:262:41:527:275:45
7:41
-0:23
23M
23.00 mi13:24:062:51:327:279:40
7:43
+0:02
24M
24.00 mi13:31:382:59:047:287:32
7:32
-0:11
40K
24.85 mi13:38:143:05:407:286:36
7:43
+0:11
25.2M
25.20 mi13:40:593:08:257:292:45
7:58
+0:15
Finish
26.22 mi13:48:143:15:407:287:15
7:07
-0:51

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

7:07 /mi

Average Pace

7:28 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:51

94% of race

Time at Steady Pace

10:49

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:28 /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 mi10:55:3623:027:2523:02
7:25
#11472
10K
6.21 mi11:18:1145:377:2022:35
7:16
#10691
15K
9.32 mi11:40:461:08:127:1922:35
7:16
#10360
20K
12.43 mi12:03:351:31:017:1922:49
7:21
#10086
Half
13.11 mi12:08:351:36:017:195:00
7:20
#10093
25K
15.53 mi12:26:271:53:537:2017:52
7:22
#9840
30K
18.64 mi12:50:072:17:337:2323:40
7:37
#9518
20M
20.00 mi13:00:372:28:037:2410:30
7:44
#9404
21M
21.00 mi13:08:412:36:077:268:04
8:04
#9260
35K
21.75 mi13:14:262:41:527:275:45
7:41
#9273
23M
23.00 mi13:24:062:51:327:279:40
7:43
#9131
24M
24.00 mi13:31:382:59:047:287:32
7:32
#9041
40K
24.85 mi13:38:143:05:407:286:36
7:43
#8972
25.2M
25.20 mi13:40:593:08:257:292:45
7:58
#8899
Finish
26.22 mi13:48:143:15:407:287:15
7:07
#8773
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi11472251225129736(Top 34%)1768(Top 14%)1768(Top 136%)
10K6.21 mi3.10 mi10691+7812152+3602152+36010105(Top 36%)1873(Top 15%)1873(Top 144%)
15K9.32 mi3.11 mi10360+3312003+1492003+1499736(Top 34%)1768(Top 14%)1768(Top 136%)
20K12.43 mi3.11 mi10086+2741905+981905+989422(Top 33%)1703(Top 14%)1703(Top 131%)
Half13.11 mi0.68 mi10093-71912-71912-710291(Top 36%)2071(Top 17%)2071(Top 159%)
25K15.53 mi2.42 mi9840+2531829+831829+838924(Top 31%)1608(Top 13%)1608(Top 123%)
30K18.64 mi3.11 mi9518+3221735+941735+948594(Top 30%)1640(Top 13%)1640(Top 126%)
20M20.00 mi1.36 mi9404+1141726+91726+98565(Top 30%)1775(Top 15%)1775(Top 136%)
21M21.00 mi1.00 mi9260+1441692+341692+347775(Top 27%)1621(Top 13%)1621(Top 124%)
35K21.75 mi0.75 mi9273-131721-291721-299992(Top 35%)2578(Top 21%)2578(Top 198%)
23M23.00 mi1.25 mi9131+1421697+241697+248039(Top 28%)1836(Top 15%)1836(Top 141%)
24M24.00 mi1.00 mi9041+901685+121685+127962(Top 28%)1847(Top 15%)1847(Top 142%)
40K24.85 mi0.85 mi8972+691698-131698-138242(Top 29%)2091(Top 17%)2091(Top 160%)
25.2M25.20 mi0.35 mi8899+731687+111687+115885(Top 21%)1211(Top 10%)1211(Top 93%)
Finish26.22 mi1.02 mi8773+1261669+181669+186504(Top 23%)1447(Top 12%)1447(Top 111%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9736

Females

1768

F50-54

1768

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

10105

Females

1873

F50-54

1873

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9736

Females

1768

F50-54

1768

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

9422

Females

1703

F50-54

1703

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

10291

Females

2071

F50-54

2071

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8924

Females

1608

F50-54

1608

25K→30K

15.5 - 18.6 mi

Top 30%
×9story building
+181ft-148ft

Overall

8594

Females

1640

F50-54

1640

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

8565

Females

1775

F50-54

1775

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7775

Females

1621

F50-54

1621

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9992

Females

2578

F50-54

2578

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

8039

Females

1836

F50-54

1836

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7962

Females

1847

F50-54

1847

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8242

Females

2091

F50-54

2091

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5885

Females

1211

F50-54

1211

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6504

Females

1447

F50-54

1447

Passing Analysis

Category:
Athletes Passed
3259*
Passed By
559
Net Change
+2699
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11472
5K → 10K83857+781#11472#10691
10K → 15K36837+331#10691#10360
15K → 20K32045+274#10360#10086
20K → Half2835-7#10086#10093
Half → 25K292*39+253#10093#9840
25K → 30K38967+322#9840#9518
30K → 20M16147+114#9518#9404
20M → 21M17026+144#9404#9260
21M → 35K5366-13#9260#9273
35K → 23M17432+142#9273#9131
23M → 24M11828+90#9131#9041
24M → 40K11849+69#9041#8972
40K → 25.2M796+73#8972#8899
25.2M → Finish15125+126#8899#8773
TOTALS3259*559+2699

* 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