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BOSTON MARATHON 2025

Montgomery Lax

Bib: 25865•F

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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
33:51
Rank: #27427
Start → 5K
33:51 | 10:54/mi
10K· 6.21 mi
1:08:17
Rank: #27296 (+131)
5K → 10K
34:26 | 11:05/mi
15K· 9.32 mi
1:43:24
Rank: #27191 (+105)
10K → 15K
35:07 | 11:18/mi
20K· 12.43 mi
2:20:35
Rank: #27165 (+26)
15K → 20K
37:11 | 11:58/mi
Half· 13.11 mi
2:28:09
Rank: #27138 (+27)
20K → Half
7:34 | 11:05/mi
25K· 15.53 mi
2:57:35
Rank: #27045 (+93)
Half → 25K
29:26 | 12:08/mi
30K· 18.64 mi
3:36:04
Rank: #26901 (+144)
25K → 30K
38:29 | 12:23/mi
20M
3:53:05
Rank: #26843 (+58)
30K → 20M
17:01 | 12:31/mi
21M
4:06:53
Rank: #26812 (+31)
20M → 21M
13:48 | 13:48/mi
35K· 21.75 mi
4:15:59
Rank: #26798 (+14)
21M → 35K
9:06 | 12:10/mi
23M
4:32:27
Rank: #26798
35K → 23M
16:28 | 13:09/mi
24M
4:44:50
Rank: #26778 (+20)
23M → 24M
12:23 | 12:23/mi
40K· 24.85 mi
4:56:06
Rank: #26772 (+6)
24M → 40K
11:16 | 13:11/mi
25.2M
5:01:26
Rank: #26789 (-17)
40K → 25.2M
5:20 | 15:28/mi
Finish· 26.22 mi
5:13:47
Rank: #26798 (-9)
25.2M → Finish
12:21 | 12:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:28:09
Pace11:18 /mi
2nd Half
Distance13.11 mi
Time2:45:38
Pace12:38 /mi
📊Positive Split: 11.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:0133:5110:5433:51
10:54
-
10K
6.21 mi12:23:271:08:1710:5934:26
11:05
+0:11
15K
9.32 mi12:58:341:43:2411:0635:07
11:18
+0:13
20K
12.43 mi13:35:452:20:3511:1937:11
11:58
+0:40
Half
13.11 mi13:43:192:28:0911:187:34
11:05
-0:53
25K
15.53 mi14:12:452:57:3511:2629:26
12:08
+1:03
30K
18.64 mi14:51:143:36:0411:3538:29
12:23
+0:15
20M
20.00 mi15:08:153:53:0511:3917:01
12:31
+0:08
21M
21.00 mi15:22:034:06:5311:4513:48
13:48
+1:17
35K
21.75 mi15:31:094:15:5911:469:06
12:10
-1:38
23M
23.00 mi15:47:374:32:2711:5116:28
13:09
+0:59
24M
24.00 mi16:00:004:44:5011:5212:23
12:23
-0:46
40K
24.85 mi16:11:164:56:0611:5511:16
13:11
+0:48
25.2M
25.20 mi16:16:365:01:2611:585:20
15:28
+2:17
Finish
26.22 mi16:28:575:13:4711:5912:21
12:07
-3:21

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

10:54 /mi

Average Pace

11:59 /mi

Slowest Pace

15:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:58

35% of race

Time at Steady Pace

2:35:57

50% of race

Time at Slower Pace

46:52

15% of race

Average Pace: 11:58 /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 mi11:49:0133:5110:5433:51
10:54
#27427
10K
6.21 mi12:23:271:08:1710:5934:26
11:05
#27296
15K
9.32 mi12:58:341:43:2411:0635:07
11:18
#27191
20K
12.43 mi13:35:452:20:3511:1937:11
11:58
#27165
Half
13.11 mi13:43:192:28:0911:187:34
11:05
#27138
25K
15.53 mi14:12:452:57:3511:2629:26
12:08
#27045
30K
18.64 mi14:51:143:36:0411:3538:29
12:23
#26901
20M
20.00 mi15:08:153:53:0511:3917:01
12:31
#26843
21M
21.00 mi15:22:034:06:5311:4513:48
13:48
#26812
35K
21.75 mi15:31:094:15:5911:469:06
12:10
#26798
23M
23.00 mi15:47:374:32:2711:5116:28
13:09
#26798
24M
24.00 mi16:00:004:44:5011:5212:23
12:23
#26778
40K
24.85 mi16:11:164:56:0611:5511:16
13:11
#26772
25.2M
25.20 mi16:16:365:01:2611:585:20
15:28
#26789
Finish
26.22 mi16:28:575:13:4711:5912:21
12:07
#26798
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27427115941159427034(Top 95%)11398(Top 93%)11398(Top 208%)
10K6.21 mi3.10 mi27296+13111527+6711527+6727165(Top 96%)11463(Top 94%)11463(Top 210%)
15K9.32 mi3.11 mi27191+10511462+6511462+6527034(Top 95%)11398(Top 93%)11398(Top 208%)
20K12.43 mi3.11 mi27165+2611464-211464-227089(Top 95%)11447(Top 94%)11447(Top 209%)
Half13.11 mi0.68 mi27138+2711453+1111453+1126618(Top 94%)11189(Top 92%)11189(Top 205%)
25K15.53 mi2.42 mi27045+9311409+4411409+4426577(Top 94%)11178(Top 91%)11178(Top 204%)
30K18.64 mi3.11 mi26901+14411341+6811341+6826047(Top 92%)10967(Top 90%)10967(Top 201%)
20M20.00 mi1.36 mi26843+5811315+2611315+2625929(Top 91%)10978(Top 90%)10978(Top 201%)
21M21.00 mi1.00 mi26812+3111306+911306+926001(Top 92%)11048(Top 90%)11048(Top 202%)
35K21.75 mi0.75 mi26798+1411308-211308-226078(Top 92%)11136(Top 91%)11136(Top 204%)
23M23.00 mi1.25 mi2679811313-511313-526552(Top 93%)11375(Top 93%)11375(Top 208%)
24M24.00 mi1.00 mi26778+2011315-211315-226171(Top 92%)11210(Top 92%)11210(Top 205%)
40K24.85 mi0.85 mi26772+611319-411319-426461(Top 93%)11363(Top 93%)11363(Top 208%)
25.2M25.20 mi0.35 mi26789-1711330-1111330-1127427(Top 97%)11856(Top 97%)11856(Top 217%)
Finish26.22 mi1.02 mi26798-911338-811338-826926(Top 95%)11598(Top 95%)11598(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21stories
+97ft-345ft

Overall

27034

Females

11398

F18-39

11398

5K→10K

3.1 - 6.2 mi

Top 96%
×5stories
+79ft-138ft

Overall

27165

Females

11463

F18-39

11463

10K→15K

6.2 - 9.3 mi

Top 95%
×3stories
+67ft-78ft

Overall

27034

Females

11398

F18-39

11398

15K→20K

9.3 - 12.4 mi

Top 95%
×5stories
+106ft-86ft

Overall

27089

Females

11447

F18-39

11447

20K→Half

12.4 - 13.1 mi

Top 94%
×2stories
+19ft-37ft

Overall

26618

Females

11189

F18-39

11189

Half→25K

13.1 - 15.5 mi

Top 94%
×4stories
+66ft-88ft

Overall

26577

Females

11178

F18-39

11178

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

26047

Females

10967

F18-39

10967

30K→20M

18.6 - 20.0 mi

Top 91%
×5stories
+64ft-50ft

Overall

25929

Females

10978

F18-39

10978

20M→21M

20.0 - 21.0 mi

Top 92%
×8stories
+106ft-24ft

Overall

26001

Females

11048

F18-39

11048

21M→35K

21.0 - 21.8 mi

Top 92%
×7stories
+17ft-86ft

Overall

26078

Females

11136

F18-39

11136

35K→23M

21.8 - 23.0 mi

Top 93%
×5stories
+23ft-63ft

Overall

26552

Females

11375

F18-39

11375

23M→24M

23.0 - 24.0 mi

Top 92%
×6stories
+12ft-82ft

Overall

26171

Females

11210

F18-39

11210

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

26461

Females

11363

F18-39

11363

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

27427

Females

11856

F18-39

11856

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2stories
+22ft-21ft

Overall

26926

Females

11598

F18-39

11598

Passing Analysis

Category:
Athletes Passed
1060
Passed By
431
Net Change
+629
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27427
5K → 10K19463+131#27427#27296
10K → 15K16762+105#27296#27191
15K → 20K10781+26#27191#27165
20K → Half347+27#27165#27138
Half → 25K12532+93#27138#27045
25K → 30K17026+144#27045#26901
30K → 20M6911+58#26901#26843
20M → 21M5221+31#26843#26812
21M → 35K2713+14#26812#26798
35K → 23M33330#26798#26798
23M → 24M4121+20#26798#26778
24M → 40K2418+6#26778#26772
40K → 25.2M522-17#26772#26789
25.2M → Finish1221-9#26789#26798
TOTALS1060431+629
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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