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BOSTON MARATHON 2025

Lulu Black

Bib: 4634•F

NC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Female)
#0 / 12228
Top 17%
Division (F18-39)
#0 / 5469
Top 30%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:49
Rank: #8015
Start → 5K
21:49 | 7:01/mi
10K· 6.21 mi
43:28
Rank: #7830 (+185)
5K → 10K
21:39 | 6:58/mi
15K· 9.32 mi
1:05:10
Rank: #7705 (+125)
10K → 15K
21:42 | 6:59/mi
20K· 12.43 mi
1:27:03
Rank: #7539 (+166)
15K → 20K
21:53 | 7:03/mi
Half· 13.11 mi
1:31:50
Rank: #7529 (+10)
20K → Half
4:47 | 7:01/mi
25K· 15.53 mi
1:49:12
Rank: #7451 (+78)
Half → 25K
17:22 | 7:10/mi
30K· 18.64 mi
2:12:31
Rank: #7410 (+41)
25K → 30K
23:19 | 7:30/mi
20M
2:23:20
Rank: #7509 (-99)
30K → 20M
10:49 | 7:58/mi
21M
2:32:20
Rank: #7779 (-270)
20M → 21M
9:00 | 9:00/mi
35K· 21.75 mi
2:38:23
Rank: #7914 (-135)
21M → 35K
6:03 | 8:05/mi
23M
2:50:00
Rank: #8545 (-631)
35K → 23M
11:37 | 9:17/mi
24M
2:58:36
Rank: #8890 (-345)
23M → 24M
8:36 | 8:36/mi
40K· 24.85 mi
3:06:24
Rank: #9235 (-345)
24M → 40K
7:48 | 9:07/mi
25.2M
3:09:57
Rank: #9421 (-186)
40K → 25.2M
3:33 | 10:18/mi
Finish· 26.22 mi
3:18:28
Rank: #9665 (-244)
25.2M → Finish
8:31 | 8:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:50
Pace7:00 /mi
2nd Half
Distance13.11 mi
Time1:46:38
Pace8:08 /mi
📊Positive Split: 16.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:1021:497:0121:49
7:01
-
10K
6.21 mi10:48:4943:287:0021:39
6:58
-0:03
15K
9.32 mi11:10:311:05:107:0021:42
6:59
+0:01
20K
12.43 mi11:32:241:27:037:0021:53
7:03
+0:04
Half
13.11 mi11:37:111:31:507:004:47
7:01
-0:02
25K
15.53 mi11:54:331:49:127:0217:22
7:10
+0:09
30K
18.64 mi12:17:522:12:317:0723:19
7:30
+0:20
20M
20.00 mi12:28:412:23:207:1010:49
7:58
+0:28
21M
21.00 mi12:37:412:32:207:159:00
9:00
+1:02
35K
21.75 mi12:43:442:38:237:176:03
8:05
-0:55
23M
23.00 mi12:55:212:50:007:2311:37
9:17
+1:12
24M
24.00 mi13:03:572:58:367:278:36
8:36
-0:41
40K
24.85 mi13:11:453:06:247:307:48
9:07
+0:31
25.2M
25.20 mi13:15:183:09:577:323:33
10:18
+1:11
Finish
26.22 mi13:23:493:18:287:358:31
8:21
-1:57

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

6:58 /mi

Average Pace

7:35 /mi

Slowest Pace

10:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:12

55% of race

Time at Steady Pace

48:42

25% of race

Time at Slower Pace

40:34

20% of race

Average Pace: 7:34 /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 mi10:27:1021:497:0121:49
7:01
#8015
10K
6.21 mi10:48:4943:287:0021:39
6:58
#7830
15K
9.32 mi11:10:311:05:107:0021:42
6:59
#7705
20K
12.43 mi11:32:241:27:037:0021:53
7:03
#7539
Half
13.11 mi11:37:111:31:507:004:47
7:01
#7529
25K
15.53 mi11:54:331:49:127:0217:22
7:10
#7451
30K
18.64 mi12:17:522:12:317:0723:19
7:30
#7410
20M
20.00 mi12:28:412:23:207:1010:49
7:58
#7509
21M
21.00 mi12:37:412:32:207:159:00
9:00
#7779
35K
21.75 mi12:43:442:38:237:176:03
8:05
#7914
23M
23.00 mi12:55:212:50:007:2311:37
9:17
#8545
24M
24.00 mi13:03:572:58:367:278:36
8:36
#8890
40K
24.85 mi13:11:453:06:247:307:48
9:07
#9235
25.2M
25.20 mi13:15:183:09:577:323:33
10:18
#9421
Finish
26.22 mi13:23:493:18:287:358:31
8:21
#9665
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi80159909907540(Top 27%)884(Top 7%)884(Top 16%)
10K6.21 mi3.10 mi7830+185937+53937+537736(Top 27%)920(Top 8%)920(Top 17%)
15K9.32 mi3.11 mi7705+125906+31906+317540(Top 27%)884(Top 7%)884(Top 16%)
20K12.43 mi3.11 mi7539+166862+44862+447170(Top 25%)833(Top 7%)833(Top 15%)
Half13.11 mi0.68 mi7529+10863-1863-17751(Top 27%)1012(Top 8%)1012(Top 19%)
25K15.53 mi2.42 mi7451+78854+9854+97372(Top 26%)993(Top 8%)993(Top 18%)
30K18.64 mi3.11 mi7410+41890-36890-367792(Top 27%)1309(Top 11%)1309(Top 24%)
20M20.00 mi1.36 mi7509-99961-71961-7110182(Top 36%)2519(Top 21%)2519(Top 46%)
21M21.00 mi1.00 mi7779-2701088-1271088-12713505(Top 48%)4353(Top 36%)4353(Top 80%)
35K21.75 mi0.75 mi7914-1351168-801168-8012837(Top 45%)4056(Top 33%)4056(Top 74%)
23M23.00 mi1.25 mi8545-6311454-2861454-28617686(Top 62%)6828(Top 56%)6828(Top 125%)
24M24.00 mi1.00 mi8890-3451630-1761630-17615163(Top 53%)5461(Top 45%)5461(Top 100%)
40K24.85 mi0.85 mi9235-3451813-1831813-18316971(Top 60%)6554(Top 54%)6554(Top 120%)
25.2M25.20 mi0.35 mi9421-1861917-1041917-10418275(Top 64%)7263(Top 59%)7263(Top 133%)
Finish26.22 mi1.02 mi9665-2442075-1582075-15815301(Top 54%)5634(Top 46%)5634(Top 103%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7540

Females

884

F18-39

884

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

7736

Females

920

F18-39

920

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7540

Females

884

F18-39

884

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

7170

Females

833

F18-39

833

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7751

Females

1012

F18-39

1012

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

7372

Females

993

F18-39

993

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7792

Females

1309

F18-39

1309

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

10182

Females

2519

F18-39

2519

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

13505

Females

4353

F18-39

4353

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

12837

Females

4056

F18-39

4056

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

17686

Females

6828

F18-39

6828

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

15163

Females

5461

F18-39

5461

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16971

Females

6554

F18-39

6554

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18275

Females

7263

F18-39

7263

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

15301

Females

5634

F18-39

5634

Passing Analysis

Category:
Athletes Passed
1330
Passed By
2980
Net Change
-1650
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8015
5K → 10K309124+185#8015#7830
10K → 15K20681+125#7830#7705
15K → 20K22054+166#7705#7539
20K → Half3020+10#7539#7529
Half → 25K14365+78#7529#7451
25K → 30K193152+41#7451#7410
30K → 20M77176-99#7410#7509
20M → 21M32302-270#7509#7779
21M → 35K32167-135#7779#7914
35K → 23M18649-631#7914#8545
23M → 24M22367-345#8545#8890
24M → 40K24369-345#8890#9235
40K → 25.2M5191-186#9235#9421
25.2M → Finish19263-244#9421#9665
TOTALS13302980-1650
📊

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