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BOSTON MARATHON 2025

Kristen Molloy

NY

Bib: 18298 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 19%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 9%
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
6:58/mi
21:39
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:49/mi
42:51
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:49/mi
1:04:03
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:53/mi
1:25:26
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:59/mi
1:30:12
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:53/mi
1:46:53
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:12/mi
2:09:16
↑ 181↓ 1480.2%
138 ft elev
20M
7:08/mi
2:18:57
↑ 64↓ 500.2%
148 ft elev
21M
7:49/mi
2:26:46
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:46/mi
2:31:50
↑ 17↓ 861.7%
156 ft elev
23M
7:12/mi
2:40:51
↑ 23↓ 630.6%
116 ft elev
24M
7:07/mi
2:47:58
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:24/mi
2:54:18
↓ 200.3%
20 ft elev
25.2M
7:53/mi
2:57:01
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:48/mi
3:03:57
↑ 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
1:30:126:53 /mi⚡ faster
2nd Half
1:33:457:09 /mi+3.9%
Positive split — 3.9% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:2321:396:5821:39
6:58
-
10K
6.21 mi11:33:3542:516:5421:12
6:49
-0:09
15K
9.32 mi11:54:471:04:036:5221:12
6:49
0:00
20K
12.43 mi12:16:101:25:266:5221:23
6:53
+0:04
Half
13.11 mi12:20:561:30:126:534:46
6:59
+0:06
25K
15.53 mi12:37:371:46:536:5316:41
6:53
-0:06
30K
18.64 mi13:00:002:09:166:5622:23
7:12
+0:19
20M
20.00 mi13:09:412:18:576:579:41
7:08
-0:04
21M
21.00 mi13:17:302:26:466:597:49
7:49
+0:41
35K
21.75 mi13:22:342:31:506:595:04
6:46
-1:03
23M
23.00 mi13:31:352:40:517:009:01
7:12
+0:26
24M
24.00 mi13:38:422:47:587:007:07
7:07
-0:05
40K
24.85 mi13:45:022:54:187:016:20
7:24
+0:17
25.2M
25.20 mi13:47:452:57:017:012:43
7:53
+0:29
Finish
26.22 mi13:54:413:03:577:016:56
6:48
-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

6:46 /mi

Average Pace

7:01 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:25

94% of race

Time at Steady Pace

10:32

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:01 /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 mi11:12:2321:396:5821:39
6:58
#7582
10K
6.21 mi11:33:3542:516:5421:12
6:49
#7134
15K
9.32 mi11:54:471:04:036:5221:12
6:49
#6846
20K
12.43 mi12:16:101:25:266:5221:23
6:53
#6625
Half
13.11 mi12:20:561:30:126:534:46
6:59
#6685
25K
15.53 mi12:37:371:46:536:5316:41
6:53
#6426
30K
18.64 mi13:00:002:09:166:5622:23
7:12
#6224
20M
20.00 mi13:09:412:18:576:579:41
7:08
#6048
21M
21.00 mi13:17:302:26:466:597:49
7:49
#6010
35K
21.75 mi13:22:342:31:506:595:04
6:46
#5912
23M
23.00 mi13:31:352:40:517:009:01
7:12
#5767
24M
24.00 mi13:38:422:47:587:007:07
7:07
#5691
40K
24.85 mi13:45:022:54:187:016:20
7:24
#5646
25.2M
25.20 mi13:47:452:57:017:012:43
7:53
#5600
Finish
26.22 mi13:54:413:03:577:016:56
6:48
#5511
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 mi75828318316347588588
10K6.21 mi3.10 mi7134+448725+106725+1066671634634
15K9.32 mi3.11 mi6846+288674+51674+516347588588
20K12.43 mi3.11 mi6625+221630+44630+446075567567
Half13.11 mi0.68 mi6685-60635-5635-57523892892
25K15.53 mi2.42 mi6426+259603+32603+325534506506
30K18.64 mi3.11 mi6224+202601+2601+25935651651
20M20.00 mi1.36 mi6048+176578+23578+234832466466
21M21.00 mi1.00 mi6010+38585-7585-7630510221022
35K21.75 mi0.75 mi5912+98566+19566+194012406406
23M23.00 mi1.25 mi5767+145554+12554+124908644644
24M24.00 mi1.00 mi5691+765545545325826826
40K24.85 mi0.85 mi5646+45552+2552+2626612261226
25.2M25.20 mi0.35 mi5600+46553-1553-15346976976
Finish26.22 mi1.02 mi5511+89545+8545+84549704704

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21story building
+97ft-345ft

Overall

6347

Females

588

F18-39

588

5K→10K

3.1 - 6.2 mi

Top 23%
×5story building
+79ft-138ft

Overall

6671

Females

634

F18-39

634

10K→15K

6.2 - 9.3 mi

Top 22%
×3story building
+67ft-78ft

Overall

6347

Females

588

F18-39

588

15K→20K

9.3 - 12.4 mi

Top 21%
×5story building
+106ft-86ft

Overall

6075

Females

567

F18-39

567

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

7523

Females

892

F18-39

892

Half→25K

13.1 - 15.5 mi

Top 19%
×4story building
+66ft-88ft

Overall

5534

Females

506

F18-39

506

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

5935

Females

651

F18-39

651

30K→20M

18.6 - 20.0 mi

Top 17%
×5story building
+64ft-50ft

Overall

4832

Females

466

F18-39

466

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

6305

Females

1022

F18-39

1022

21M→35K

21.0 - 21.8 mi

Top 14%
×7story building
+17ft-86ft

Overall

4012

Females

406

F18-39

406

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4908

Females

644

F18-39

644

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

5325

Females

826

F18-39

826

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6266

Females

1226

F18-39

1226

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5346

Females

976

F18-39

976

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2story building
+22ft-21ft

Overall

4549

Females

704

F18-39

704

Passing Analysis

Category:
Athletes Passed
2491
Passed By
420
Net Change
+2071
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7582
5K → 10K49749+448#7582#7134
10K → 15K31527+288#7134#6846
15K → 20K25635+221#6846#6625
20K → Half1070-60#6625#6685
Half → 25K28122+259#6685#6426
25K → 30K27371+202#6426#6224
30K → 20M1804+176#6224#6048
20M → 21M8648+38#6048#6010
21M → 35K1035+98#6010#5912
35K → 23M16419+145#5912#5767
23M → 24M9721+76#5767#5691
24M → 40K7227+45#5691#5646
40K → 25.2M548+46#5646#5600
25.2M → Finish10314+89#5600#5511
TOTALS2491420+2071

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