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BOSTON MARATHON 2025

Julie Lao

Bib: 24947•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Top 41%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:30
Rank: #21775
Start → 5K
27:30 | 8:51/mi
10K· 6.21 mi
55:07
Rank: #21818 (-43)
5K → 10K
27:37 | 8:53/mi
15K· 9.32 mi
1:23:08
Rank: #21915 (-97)
10K → 15K
28:01 | 9:01/mi
20K· 12.43 mi
1:51:48
Rank: #21918 (-3)
15K → 20K
28:40 | 9:14/mi
Half· 13.11 mi
1:57:57
Rank: #21913 (+5)
20K → Half
6:09 | 9:01/mi
25K· 15.53 mi
2:20:42
Rank: #21825 (+88)
Half → 25K
22:45 | 9:23/mi
30K· 18.64 mi
2:52:05
Rank: #21904 (-79)
25K → 30K
31:23 | 10:06/mi
20M
3:05:28
Rank: #21770 (+134)
30K → 20M
13:23 | 9:51/mi
21M
3:16:30
Rank: #21749 (+21)
20M → 21M
11:02 | 11:02/mi
35K· 21.75 mi
3:23:50
Rank: #21733 (+16)
21M → 35K
7:20 | 9:48/mi
23M
3:36:44
Rank: #21699 (+34)
35K → 23M
12:54 | 10:18/mi
24M
3:46:40
Rank: #21676 (+23)
23M → 24M
9:56 | 9:56/mi
40K· 24.85 mi
3:55:29
Rank: #21665 (+11)
24M → 40K
8:49 | 10:19/mi
25.2M
3:59:30
Rank: #21667 (-2)
40K → 25.2M
4:01 | 11:39/mi
Finish· 26.22 mi
4:09:40
Rank: #21694 (-27)
25.2M → Finish
10:10 | 9:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:57
Pace9:00 /mi
2nd Half
Distance13.11 mi
Time2:11:43
Pace10:03 /mi
📊Positive Split: 11.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:2027:308:5127:30
8:51
-
10K
6.21 mi11:48:5755:078:5227:37
8:53
+0:02
15K
9.32 mi12:16:581:23:088:5528:01
9:01
+0:08
20K
12.43 mi12:45:381:51:489:0028:40
9:14
+0:13
Half
13.11 mi12:51:471:57:579:006:09
9:01
-0:13
25K
15.53 mi13:14:322:20:429:0322:45
9:23
+0:22
30K
18.64 mi13:45:552:52:059:1431:23
10:06
+0:43
20M
20.00 mi13:59:183:05:289:1613:23
9:51
-0:15
21M
21.00 mi14:10:203:16:309:2111:02
11:02
+1:11
35K
21.75 mi14:17:403:23:509:227:20
9:48
-1:14
23M
23.00 mi14:30:343:36:449:2512:54
10:18
+0:30
24M
24.00 mi14:40:303:46:409:279:56
9:56
-0:22
40K
24.85 mi14:49:193:55:299:288:49
10:19
+0:23
25.2M
25.20 mi14:53:203:59:309:304:01
11:39
+1:20
Finish
26.22 mi15:03:304:09:409:3210:10
9:59
-1:40

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

8:51 /mi

Average Pace

9:32 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:42

56% of race

Time at Steady Pace

1:12:12

29% of race

Time at Slower Pace

36:46

15% of race

Average Pace: 9:31 /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 mi11:21:2027:308:5127:30
8:51
#21775
10K
6.21 mi11:48:5755:078:5227:37
8:53
#21818
15K
9.32 mi12:16:581:23:088:5528:01
9:01
#21915
20K
12.43 mi12:45:381:51:489:0028:40
9:14
#21918
Half
13.11 mi12:51:471:57:579:006:09
9:01
#21913
25K
15.53 mi13:14:322:20:429:0322:45
9:23
#21825
30K
18.64 mi13:45:552:52:059:1431:23
10:06
#21904
20M
20.00 mi13:59:183:05:289:1613:23
9:51
#21770
21M
21.00 mi14:10:203:16:309:2111:02
11:02
#21749
35K
21.75 mi14:17:403:23:509:227:20
9:48
#21733
23M
23.00 mi14:30:343:36:449:2512:54
10:18
#21699
24M
24.00 mi14:40:303:46:409:279:56
9:56
#21676
40K
24.85 mi14:49:193:55:299:288:49
10:19
#21665
25.2M
25.20 mi14:53:203:59:309:304:01
11:39
#21667
Finish
26.22 mi15:03:304:09:409:3210:10
9:59
#21694
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi217758503850322125(Top 78%)8623(Top 71%)8623(Top 1382%)
10K6.21 mi3.10 mi21818-438508-58508-521878(Top 77%)8532(Top 70%)8532(Top 1367%)
15K9.32 mi3.11 mi21915-978551-438551-4322125(Top 78%)8623(Top 71%)8623(Top 1382%)
20K12.43 mi3.11 mi21918-38559-88559-822001(Top 77%)8582(Top 70%)8582(Top 1375%)
Half13.11 mi0.68 mi21913+58556+38556+321920(Top 77%)8556(Top 70%)8556(Top 1371%)
25K15.53 mi2.42 mi21825+888513+438513+4321496(Top 76%)8359(Top 68%)8359(Top 1340%)
30K18.64 mi3.11 mi21904-798570-578570-5721912(Top 77%)8731(Top 71%)8731(Top 1399%)
20M20.00 mi1.36 mi21770+1348508+628508+6220461(Top 72%)8057(Top 66%)8057(Top 1291%)
21M21.00 mi1.00 mi21749+218524-168524-1621506(Top 76%)8708(Top 71%)8708(Top 1396%)
35K21.75 mi0.75 mi21733+168528-48528-421351(Top 75%)8697(Top 71%)8697(Top 1394%)
23M23.00 mi1.25 mi21699+348546-188546-1821432(Top 75%)8777(Top 72%)8777(Top 1407%)
24M24.00 mi1.00 mi21676+238555-98555-921186(Top 75%)8695(Top 71%)8695(Top 1393%)
40K24.85 mi0.85 mi21665+118579-248579-2421422(Top 75%)8886(Top 73%)8886(Top 1424%)
25.2M25.20 mi0.35 mi21667-28589-108589-1022462(Top 79%)9385(Top 77%)9385(Top 1504%)
Finish26.22 mi1.02 mi21694-278611-228611-2222874(Top 81%)9602(Top 79%)9602(Top 1539%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

22125

Females

8623

F60-64

8623

5K→10K

3.1 - 6.2 mi

Top 77%
×5stories
+79ft-138ft

Overall

21878

Females

8532

F60-64

8532

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

22125

Females

8623

F60-64

8623

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

22001

Females

8582

F60-64

8582

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

21920

Females

8556

F60-64

8556

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

21496

Females

8359

F60-64

8359

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

21912

Females

8731

F60-64

8731

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20461

Females

8057

F60-64

8057

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

21506

Females

8708

F60-64

8708

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

21351

Females

8697

F60-64

8697

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

21432

Females

8777

F60-64

8777

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

21186

Females

8695

F60-64

8695

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21422

Females

8886

F60-64

8886

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22462

Females

9385

F60-64

9385

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

22874

Females

9602

F60-64

9602

Passing Analysis

Category:
Athletes Passed
1593
Passed By
1512
Net Change
+81
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21775
5K → 10K244287-43#21775#21818
10K → 15K171268-97#21818#21915
15K → 20K194197-3#21915#21918
20K → Half4237+5#21918#21913
Half → 25K189101+88#21913#21825
25K → 30K168247-79#21825#21904
30K → 20M16531+134#21904#21770
20M → 21M9069+21#21770#21749
21M → 35K5034+16#21749#21733
35K → 23M9561+34#21733#21699
23M → 24M6037+23#21699#21676
24M → 40K6352+11#21676#21665
40K → 25.2M2628-2#21665#21667
25.2M → Finish3663-27#21667#21694
TOTALS15931512+81
📊

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