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BOSTON MARATHON 2025

Katie Miller

WA

Bib: 15357 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 32%
Gender (Female)
#0 / 12228
Top 15%
Division (F18-39)
#0 / 5469
Top 26%
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
7:19/mi
22:45
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:17/mi
45:23
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:10/mi
1:07:39
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:18/mi
1:30:20
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:14/mi
1:35:16
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:21/mi
1:53:06
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:39/mi
2:16:52
↑ 181↓ 1480.2%
138 ft elev
20M
7:41/mi
2:27:18
↑ 64↓ 500.2%
148 ft elev
21M
8:22/mi
2:35:40
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:41/mi
2:41:25
↑ 17↓ 861.7%
156 ft elev
23M
8:10/mi
2:51:38
↑ 23↓ 630.6%
116 ft elev
24M
7:45/mi
2:59:23
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:37/mi
3:05:54
↓ 200.3%
20 ft elev
25.2M
7:51/mi
3:08:36
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:51/mi
3:16:36
↑ 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
1:35:167:16 /mi⚡ faster
2nd Half
1:41:207:44 /mi+6.4%
Positive split — 6.4% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:5322:457:1922:45
7:19
-
10K
6.21 mi11:16:3145:237:1822:38
7:17
-0:02
15K
9.32 mi11:38:471:07:397:1522:16
7:10
-0:07
20K
12.43 mi12:01:281:30:207:1622:41
7:18
+0:08
Half
13.11 mi12:06:241:35:167:164:56
7:14
-0:04
25K
15.53 mi12:24:141:53:067:1717:50
7:21
+0:07
30K
18.64 mi12:48:002:16:527:2123:46
7:39
+0:18
20M
20.00 mi12:58:262:27:187:2210:26
7:41
+0:02
21M
21.00 mi13:06:482:35:407:258:22
8:22
+0:41
35K
21.75 mi13:12:332:41:257:255:45
7:41
-0:41
23M
23.00 mi13:22:462:51:387:2810:13
8:10
+0:29
24M
24.00 mi13:30:312:59:237:287:45
7:45
-0:25
40K
24.85 mi13:37:023:05:547:296:31
7:37
-0:08
25.2M
25.20 mi13:39:443:08:367:292:42
7:51
+0:14
Finish
26.22 mi13:47:443:16:367:308:00
7:51
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

7:10 /mi

Average Pace

7:30 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:58:01

91% of race

Time at Steady Pace

18:35

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:30 /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 mi10:53:5322:457:1922:45
7:19
#10591
10K
6.21 mi11:16:3145:237:1822:38
7:17
#10376
15K
9.32 mi11:38:471:07:397:1522:16
7:10
#9835
20K
12.43 mi12:01:281:30:207:1622:41
7:18
#9590
Half
13.11 mi12:06:241:35:167:164:56
7:14
#9571
25K
15.53 mi12:24:141:53:067:1717:50
7:21
#9412
30K
18.64 mi12:48:002:16:527:2123:46
7:39
#9226
20M
20.00 mi12:58:262:27:187:2210:26
7:41
#9107
21M
21.00 mi13:06:482:35:407:258:22
8:22
#9101
35K
21.75 mi13:12:332:41:257:255:45
7:41
#9112
23M
23.00 mi13:22:462:51:387:2810:13
8:10
#9165
24M
24.00 mi13:30:312:59:237:287:45
7:45
#9170
40K
24.85 mi13:37:023:05:547:296:31
7:37
#9062
25.2M
25.20 mi13:39:443:08:367:292:42
7:51
#8958
Finish
26.22 mi13:47:443:16:367:308:00
7:51
#9064
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 mi1059120812081885413661366
10K6.21 mi3.10 mi10376+2151992+891992+891023819311931
15K9.32 mi3.11 mi9835+5411762+2301762+230885413661366
20K12.43 mi3.11 mi9590+2451683+791683+79906715541554
Half13.11 mi0.68 mi9571+191682+11682+1945717001700
25K15.53 mi2.42 mi9412+1591636+461636+46880415551555
30K18.64 mi3.11 mi9226+1861608+281608+28883317601760
20M20.00 mi1.36 mi9107+1191581+271581+27822616301630
21M21.00 mi1.00 mi9101+61618-371618-37965924462446
35K21.75 mi0.75 mi9112-111650-321650-32999425802580
23M23.00 mi1.25 mi9165-531711-611711-611112532823282
24M24.00 mi1.00 mi9170-51740-291740-29946725442544
40K24.85 mi0.85 mi9062+1081733+71733+7759818031803
25.2M25.20 mi0.35 mi8958+1041711+221711+225162958958
Finish26.22 mi1.02 mi9064-1061799-881799-881173838273827

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8854

Females

1366

F18-39

1366

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

10238

Females

1931

F18-39

1931

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8854

Females

1366

F18-39

1366

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

9067

Females

1554

F18-39

1554

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

9457

Females

1700

F18-39

1700

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8804

Females

1555

F18-39

1555

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8833

Females

1760

F18-39

1760

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

8226

Females

1630

F18-39

1630

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

9659

Females

2446

F18-39

2446

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9994

Females

2580

F18-39

2580

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

11125

Females

3282

F18-39

3282

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

9467

Females

2544

F18-39

2544

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7598

Females

1803

F18-39

1803

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5162

Females

958

F18-39

958

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

11738

Females

3827

F18-39

3827

Passing Analysis

Category:
Athletes Passed
2584*
Passed By
1057
Net Change
+1527
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10591
5K → 10K371156+215#10591#10376
10K → 15K558*17+541#10376#9835
15K → 20K31065+245#9835#9590
20K → Half4122+19#9590#9571
Half → 25K21960+159#9571#9412
25K → 30K306120+186#9412#9226
30K → 20M16243+119#9226#9107
20M → 21M9993+6#9107#9101
21M → 35K5566-11#9101#9112
35K → 23M96149-53#9112#9165
23M → 24M8287-5#9165#9170
24M → 40K13628+108#9170#9062
40K → 25.2M1073+104#9062#8958
25.2M → Finish42148-106#8958#9064
TOTALS2584*1057+1527

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

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