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BOSTON MARATHON 2025

Kristin Miller

Bib: 19420•F

UT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 45%
Division (F40-44)
#0 / 1718
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
8:25/mi
26:08
↑ 97↓ 3451.5%
10K· 6.21 mi
8:25/mi
52:18
↑ 79↓ 1380.4%
15K· 9.32 mi
8:20/mi
1:18:10
↑ 67↓ 78
20K· 12.43 mi
8:41/mi
1:45:09
↑ 106↓ 860.1%
Half· 13.11 mi
8:04/mi
1:50:39
↑ 19↓ 370.5%
25K· 15.53 mi
8:32/mi
2:11:20
↑ 66↓ 880.2%
30K· 18.64 mi
9:03/mi
2:39:28
↑ 181↓ 1480.2%
20M
9:14/mi
2:52:01
↑ 64↓ 500.2%
21M
9:32/mi
3:01:33
↑ 106↓ 241.6%
35K· 21.75 mi
8:35/mi
3:07:58
↑ 17↓ 861.7%
23M
9:13/mi
3:19:31
↑ 23↓ 630.6%
24M
9:06/mi
3:28:37
↓ 821.3%
40K· 24.85 mi
9:19/mi
3:36:35
↓ 200.3%
25.2M
10:03/mi
3:40:03
↑ 13↓ 160.2%
Finish· 26.22 mi
8:58/mi
3:49:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:39
Pace8:26 /mi
2nd Half
Distance13.11 mi
Time1:58:32
Pace9:03 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4126:088:2526:08
8:25
-
10K
6.21 mi11:45:5152:188:2526:10
8:25
0:00
15K
9.32 mi12:11:431:18:108:2325:52
8:20
-0:05
20K
12.43 mi12:38:421:45:098:2826:59
8:41
+0:21
Half
13.11 mi12:44:121:50:398:265:30
8:04
-0:37
25K
15.53 mi13:04:532:11:208:2720:41
8:32
+0:28
30K
18.64 mi13:33:012:39:288:3328:08
9:03
+0:31
20M
20.00 mi13:45:342:52:018:3612:33
9:14
+0:11
21M
21.00 mi13:55:063:01:338:399:32
9:32
+0:18
35K
21.75 mi14:01:313:07:588:396:25
8:35
-0:57
23M
23.00 mi14:13:043:19:318:4011:33
9:13
+0:38
24M
24.00 mi14:22:103:28:378:429:06
9:06
-0:07
40K
24.85 mi14:30:083:36:358:437:58
9:19
+0:13
25.2M
25.20 mi14:33:363:40:038:443:28
10:03
+0:44
Finish
26.22 mi14:42:443:49:118:459:08
8:58
-1:05

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

8:04 /mi

Average Pace

8:45 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:17:45

60% of race

Time at Steady Pace

57:55

25% of race

Time at Slower Pace

33:31

15% of race

Average Pace: 8:44 /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 mi11:19:4126:088:2526:08
8:25
#19387
10K
6.21 mi11:45:5152:188:2526:10
8:25
#19347
15K
9.32 mi12:11:431:18:108:2325:52
8:20
#18952
20K
12.43 mi12:38:421:45:098:2826:59
8:41
#19025
Half
13.11 mi12:44:121:50:398:265:30
8:04
#18892
25K
15.53 mi13:04:532:11:208:2720:41
8:32
#18623
30K
18.64 mi13:33:012:39:288:3328:08
9:03
#18478
20M
20.00 mi13:45:342:52:018:3612:33
9:14
#18437
21M
21.00 mi13:55:063:01:338:399:32
9:32
#18279
35K
21.75 mi14:01:313:07:588:396:25
8:35
#18191
23M
23.00 mi14:13:043:19:318:4011:33
9:13
#18130
24M
24.00 mi14:22:103:28:378:429:06
9:06
#18107
40K
24.85 mi14:30:083:36:358:437:58
9:19
#18103
25.2M
25.20 mi14:33:363:40:038:443:28
10:03
#18089
Finish
26.22 mi14:42:443:49:118:459:08
8:58
#18130
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi193877134713418238(Top 64%)6463(Top 53%)6463(Top 376%)
10K6.21 mi3.10 mi19347+407089+457089+4519336(Top 68%)7073(Top 58%)7073(Top 412%)
15K9.32 mi3.11 mi18952+3956880+2096880+20918238(Top 64%)6463(Top 53%)6463(Top 376%)
20K12.43 mi3.11 mi19025-736918-386918-3819346(Top 68%)7104(Top 58%)7104(Top 414%)
Half13.11 mi0.68 mi18892+1336842+766842+7616456(Top 58%)5461(Top 45%)5461(Top 318%)
25K15.53 mi2.42 mi18623+2696705+1376705+13717389(Top 61%)6078(Top 50%)6078(Top 354%)
30K18.64 mi3.11 mi18478+1456651+546651+5417958(Top 63%)6553(Top 54%)6553(Top 381%)
20M20.00 mi1.36 mi18437+416662-116662-1117968(Top 63%)6697(Top 55%)6697(Top 390%)
21M21.00 mi1.00 mi18279+1586597+656597+6516251(Top 57%)5847(Top 48%)5847(Top 340%)
35K21.75 mi0.75 mi18191+886567+306567+3015999(Top 56%)5790(Top 47%)5790(Top 337%)
23M23.00 mi1.25 mi18130+616570-36570-317464(Top 61%)6702(Top 55%)6702(Top 390%)
24M24.00 mi1.00 mi18107+236577-76577-717901(Top 63%)6978(Top 57%)6978(Top 406%)
40K24.85 mi0.85 mi18103+46603-266603-2617948(Top 63%)7102(Top 58%)7102(Top 413%)
25.2M25.20 mi0.35 mi18089+146603660317302(Top 61%)6752(Top 55%)6752(Top 393%)
Finish26.22 mi1.02 mi18130-416640-376640-3718858(Top 66%)7518(Top 61%)7518(Top 438%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

18238

Females

6463

F40-44

6463

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

19336

Females

7073

F40-44

7073

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

18238

Females

6463

F40-44

6463

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19346

Females

7104

F40-44

7104

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

16456

Females

5461

F40-44

5461

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

17389

Females

6078

F40-44

6078

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

17958

Females

6553

F40-44

6553

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

17968

Females

6697

F40-44

6697

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

16251

Females

5847

F40-44

5847

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

15999

Females

5790

F40-44

5790

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17464

Females

6702

F40-44

6702

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

17901

Females

6978

F40-44

6978

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17948

Females

7102

F40-44

7102

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17302

Females

6752

F40-44

6752

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

18858

Females

7518

F40-44

7518

Passing Analysis

Category:
Athletes Passed
2420
Passed By
1163
Net Change
+1257
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19387
5K → 10K275235+40#19387#19347
10K → 15K45055+395#19347#18952
15K → 20K178251-73#18952#19025
20K → Half1341+133#19025#18892
Half → 25K29829+269#18892#18623
25K → 30K311166+145#18623#18478
30K → 20M12584+41#18478#18437
20M → 21M18628+158#18437#18279
21M → 35K10315+88#18279#18191
35K → 23M12968+61#18191#18130
23M → 24M8663+23#18130#18107
24M → 40K6561+4#18107#18103
40K → 25.2M3521+14#18103#18089
25.2M → Finish4586-41#18089#18130
TOTALS24201163+1257
📊

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