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BOSTON MARATHON 2025

Brooke Starn

Bib: 1236•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 6%
Gender (Female)
#0 / 12228
Top 0.7%
Division (F18-39)
#0 / 5469
Top 1%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:03
Rank: #1543
Start → 5K
19:03 | 6:08/mi
10K· 6.21 mi
38:01
Rank: #1518 (+25)
5K → 10K
18:58 | 6:06/mi
15K· 9.32 mi
56:54
Rank: #1421 (+97)
10K → 15K
18:53 | 6:05/mi
20K· 12.43 mi
1:15:36
Rank: #1252 (+169)
15K → 20K
18:42 | 6:01/mi
Half· 13.11 mi
1:19:39
Rank: #1230 (+22)
20K → Half
4:03 | 5:56/mi
25K· 15.53 mi
1:34:13
Rank: #1149 (+81)
Half → 25K
14:34 | 6:00/mi
30K· 18.64 mi
1:54:02
Rank: #1184 (-35)
25K → 30K
19:49 | 6:23/mi
20M
2:03:33
Rank: #1308 (-124)
30K → 20M
9:31 | 7:00/mi
21M
2:11:00
Rank: #1410 (-102)
20M → 21M
7:27 | 7:27/mi
35K· 21.75 mi
2:15:58
Rank: #1434 (-24)
21M → 35K
4:58 | 6:38/mi
23M
2:24:45
Rank: #1526 (-92)
35K → 23M
8:47 | 7:01/mi
24M
2:31:38
Rank: #1576 (-50)
23M → 24M
6:53 | 6:53/mi
40K· 24.85 mi
2:37:37
Rank: #1639 (-63)
24M → 40K
5:59 | 7:00/mi
25.2M
2:40:14
Rank: #1663 (-24)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:47:08
Rank: #1742 (-79)
25.2M → Finish
6:54 | 6:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:39
Pace6:05 /mi
2nd Half
Distance13.11 mi
Time1:27:29
Pace6:40 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:3119:036:0819:03
6:08
-
10K
6.21 mi10:38:2938:016:0718:58
6:06
-0:02
15K
9.32 mi10:57:2256:546:0618:53
6:05
-0:01
20K
12.43 mi11:16:041:15:366:0518:42
6:01
-0:04
Half
13.11 mi11:20:071:19:396:054:03
5:56
-0:05
25K
15.53 mi11:34:411:34:136:0414:34
6:00
+0:04
30K
18.64 mi11:54:301:54:026:0719:49
6:23
+0:23
20M
20.00 mi12:04:012:03:336:119:31
7:00
+0:37
21M
21.00 mi12:11:282:11:006:147:27
7:27
+0:27
35K
21.75 mi12:16:262:15:586:154:58
6:38
-0:49
23M
23.00 mi12:25:132:24:456:188:47
7:01
+0:23
24M
24.00 mi12:32:062:31:386:196:53
6:53
-0:08
40K
24.85 mi12:38:052:37:376:205:59
7:00
+0:07
25.2M
25.20 mi12:40:422:40:146:222:37
7:35
+0:35
Finish
26.22 mi12:47:362:47:086:236:54
6:46
-0:49

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

5:56 /mi

Average Pace

6:23 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:13

56% of race

Time at Steady Pace

38:34

23% of race

Time at Slower Pace

34:21

21% of race

Average Pace: 6:22 /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 mi10:19:3119:036:0819:03
6:08
#1543
10K
6.21 mi10:38:2938:016:0718:58
6:06
#1518
15K
9.32 mi10:57:2256:546:0618:53
6:05
#1421
20K
12.43 mi11:16:041:15:366:0518:42
6:01
#1252
Half
13.11 mi11:20:071:19:396:054:03
5:56
#1230
25K
15.53 mi11:34:411:34:136:0414:34
6:00
#1149
30K
18.64 mi11:54:301:54:026:0719:49
6:23
#1184
20M
20.00 mi12:04:012:03:336:119:31
7:00
#1308
21M
21.00 mi12:11:282:11:006:147:27
7:27
#1410
35K
21.75 mi12:16:262:15:586:154:58
6:38
#1434
23M
23.00 mi12:25:132:24:456:188:47
7:01
#1526
24M
24.00 mi12:32:062:31:386:196:53
6:53
#1576
40K
24.85 mi12:38:052:37:376:205:59
7:00
#1639
25.2M
25.20 mi12:40:422:40:146:222:37
7:35
#1663
Finish
26.22 mi12:47:362:47:086:236:54
6:46
#1742
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi154369691304(Top 5%)61(Top 0.5%)61(Top 1%)
10K6.21 mi3.10 mi1518+2569691491(Top 5%)70(Top 0.6%)70(Top 1%)
15K9.32 mi3.11 mi1421+9767+267+21304(Top 5%)61(Top 0.5%)61(Top 1%)
20K12.43 mi3.11 mi1252+16963+463+4924(Top 3%)50(Top 0.4%)50(Top 0.9%)
Half13.11 mi0.68 mi1230+2262+162+1982(Top 3%)49(Top 0.4%)49(Top 0.9%)
25K15.53 mi2.42 mi1149+8159+359+3840(Top 3%)48(Top 0.4%)48(Top 0.9%)
30K18.64 mi3.11 mi1184-3561-261-21477(Top 5%)73(Top 0.6%)73(Top 1%)
20M20.00 mi1.36 mi1308-12468-768-74137(Top 15%)336(Top 3%)336(Top 6%)
21M21.00 mi1.00 mi1410-10272-472-44378(Top 15%)444(Top 4%)444(Top 8%)
35K21.75 mi0.75 mi1434-2472723200(Top 11%)249(Top 2%)249(Top 5%)
23M23.00 mi1.25 mi1526-9275-375-33871(Top 14%)376(Top 3%)376(Top 7%)
24M24.00 mi1.00 mi1576-5079-479-44014(Top 14%)450(Top 4%)450(Top 8%)
40K24.85 mi0.85 mi1639-6381-281-23920(Top 14%)470(Top 4%)470(Top 9%)
25.2M25.20 mi0.35 mi1663-2482-182-13875(Top 14%)509(Top 4%)509(Top 9%)
Finish26.22 mi1.02 mi1742-7986-486-44349(Top 15%)642(Top 5%)642(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1304

Females

61

F18-39

61

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1491

Females

70

F18-39

70

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1304

Females

61

F18-39

61

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

924

Females

50

F18-39

50

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

982

Females

49

F18-39

49

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

840

Females

48

F18-39

48

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1477

Females

73

F18-39

73

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4137

Females

336

F18-39

336

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4378

Females

444

F18-39

444

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3200

Females

249

F18-39

249

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3871

Females

376

F18-39

376

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

4014

Females

450

F18-39

450

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3920

Females

470

F18-39

470

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3875

Females

509

F18-39

509

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4349

Females

642

F18-39

642

Passing Analysis

Category:
Athletes Passed
615
Passed By
814
Net Change
-199
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1543
5K → 10K8964+25#1543#1518
10K → 15K11417+97#1518#1421
15K → 20K1701+169#1421#1252
20K → Half220+22#1252#1230
Half → 25K876+81#1230#1149
25K → 30K3974-35#1149#1184
30K → 20M9133-124#1184#1308
20M → 21M7109-102#1308#1410
21M → 35K1539-24#1410#1434
35K → 23M22114-92#1434#1526
23M → 24M1363-50#1526#1576
24M → 40K1376-63#1576#1639
40K → 25.2M630-24#1639#1663
25.2M → Finish988-79#1663#1742
TOTALS615814-199
📊

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