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BOSTON MARATHON 2025

Bruna Cristina Belisario Cho

Bib: 16237•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 48%
Gender (Female)
#0 / 12228
Top 33%
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
26:11
Rank: #19458
Start → 5K
26:11 | 8:26/mi
10K· 6.21 mi
51:54
Rank: #18942 (+516)
5K → 10K
25:43 | 8:17/mi
15K· 9.32 mi
1:17:09
Rank: #18256 (+686)
10K → 15K
25:15 | 8:08/mi
20K· 12.43 mi
1:42:03
Rank: #17412 (+844)
15K → 20K
24:54 | 8:01/mi
Half· 13.11 mi
1:47:20
Rank: #17246 (+166)
20K → Half
5:17 | 7:45/mi
25K· 15.53 mi
2:06:22
Rank: #16543 (+703)
Half → 25K
19:02 | 7:51/mi
30K· 18.64 mi
2:31:26
Rank: #15689 (+854)
25K → 30K
25:04 | 8:04/mi
20M
2:42:18
Rank: #15258 (+431)
30K → 20M
10:52 | 8:00/mi
21M
2:50:36
Rank: #14839 (+419)
20M → 21M
8:18 | 8:18/mi
35K· 21.75 mi
2:55:57
Rank: #14503 (+336)
21M → 35K
5:21 | 7:09/mi
23M
3:05:55
Rank: #14203 (+300)
35K → 23M
9:58 | 7:58/mi
24M
3:13:46
Rank: #14007 (+196)
23M → 24M
7:51 | 7:51/mi
40K· 24.85 mi
3:20:35
Rank: #13806 (+201)
24M → 40K
6:49 | 7:58/mi
25.2M
3:23:31
Rank: #13710 (+96)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:31:16
Rank: #13553 (+157)
25.2M → Finish
7:45 | 7:36/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:47:20
Pace8:11 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:43:56
Pace7:56 /mi
📊Negative Split: 3.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:00:0326:118:2626:11
8:26
-
10K
6.21 mi11:25:4651:548:2125:43
8:17
-0:09
15K
9.32 mi11:51:011:17:098:1725:15
8:08
-0:09
20K
12.43 mi12:15:551:42:038:1324:54
8:01
-0:07
Half
13.11 mi12:21:121:47:208:115:17
7:45
-0:16
25K
15.53 mi12:40:142:06:228:0819:02
7:51
+0:06
30K
18.64 mi13:05:182:31:268:0725:04
8:04
+0:13
20M
20.00 mi13:16:102:42:188:0710:52
8:00
-0:04
21M
21.00 mi13:24:282:50:368:078:18
8:18
+0:18
35K
21.75 mi13:29:492:55:578:055:21
7:09
-1:09
23M
23.00 mi13:39:473:05:558:059:58
7:58
+0:49
24M
24.00 mi13:47:383:13:468:047:51
7:51
-0:07
40K
24.85 mi13:54:273:20:358:046:49
7:58
+0:07
25.2M
25.20 mi13:57:233:23:318:052:56
8:30
+0:32
Finish
26.22 mi14:05:083:31:168:047:45
7:36
-0:54

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

7:09 /mi

Average Pace

8:04 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

45:16

21% of race

Time at Steady Pace

2:43:04

77% of race

Time at Slower Pace

2:56

1% of race

Average Pace: 8:03 /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 mi11:00:0326:118:2626:11
8:26
#19458
10K
6.21 mi11:25:4651:548:2125:43
8:17
#18942
15K
9.32 mi11:51:011:17:098:1725:15
8:08
#18256
20K
12.43 mi12:15:551:42:038:1324:54
8:01
#17412
Half
13.11 mi12:21:121:47:208:115:17
7:45
#17246
25K
15.53 mi12:40:142:06:228:0819:02
7:51
#16543
30K
18.64 mi13:05:182:31:268:0725:04
8:04
#15689
20M
20.00 mi13:16:102:42:188:0710:52
8:00
#15258
21M
21.00 mi13:24:282:50:368:078:18
8:18
#14839
35K
21.75 mi13:29:492:55:578:055:21
7:09
#14503
23M
23.00 mi13:39:473:05:558:059:58
7:58
#14203
24M
24.00 mi13:47:383:13:468:047:51
7:51
#14007
40K
24.85 mi13:54:273:20:358:046:49
7:58
#13806
25.2M
25.20 mi13:57:233:23:318:052:56
8:30
#13710
Finish
26.22 mi14:05:083:31:168:047:45
7:36
#13553
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi194587170717016925(Top 60%)5686(Top 46%)5686(Top 104%)
10K6.21 mi3.10 mi18942+5166869+3016869+30118405(Top 65%)6540(Top 53%)6540(Top 120%)
15K9.32 mi3.11 mi18256+6866479+3906479+39016925(Top 60%)5686(Top 46%)5686(Top 104%)
20K12.43 mi3.11 mi17412+8445978+5015978+50115051(Top 53%)4666(Top 38%)4666(Top 85%)
Half13.11 mi0.68 mi17246+1665892+865892+8613838(Top 49%)3977(Top 33%)3977(Top 73%)
25K15.53 mi2.42 mi16543+7035486+4065486+40612780(Top 45%)3551(Top 29%)3551(Top 65%)
30K18.64 mi3.11 mi15689+8545041+4455041+44511890(Top 42%)3243(Top 27%)3243(Top 59%)
20M20.00 mi1.36 mi15258+4314839+2024839+20210466(Top 37%)2680(Top 22%)2680(Top 49%)
21M21.00 mi1.00 mi14839+4194631+2084631+2089266(Top 33%)2290(Top 19%)2290(Top 42%)
35K21.75 mi0.75 mi14503+3364455+1764455+1766363(Top 22%)1071(Top 9%)1071(Top 20%)
23M23.00 mi1.25 mi14203+3004338+1174338+1179793(Top 34%)2649(Top 22%)2649(Top 48%)
24M24.00 mi1.00 mi14007+1964269+694269+6910246(Top 36%)2941(Top 24%)2941(Top 54%)
40K24.85 mi0.85 mi13806+2014186+834186+8310057(Top 35%)2969(Top 24%)2969(Top 54%)
25.2M25.20 mi0.35 mi13710+964140+464140+468948(Top 32%)2532(Top 21%)2532(Top 46%)
Finish26.22 mi1.02 mi13553+1574068+724068+7210037(Top 35%)3019(Top 25%)3019(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

16925

Females

5686

F18-39

5686

5K→10K

3.1 - 6.2 mi

Top 65%
×5stories
+79ft-138ft

Overall

18405

Females

6540

F18-39

6540

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

16925

Females

5686

F18-39

5686

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

15051

Females

4666

F18-39

4666

20K→Half

12.4 - 13.1 mi

Top 49%
×2stories
+19ft-37ft

Overall

13838

Females

3977

F18-39

3977

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

12780

Females

3551

F18-39

3551

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11890

Females

3243

F18-39

3243

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

10466

Females

2680

F18-39

2680

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

9266

Females

2290

F18-39

2290

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

6363

Females

1071

F18-39

1071

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

9793

Females

2649

F18-39

2649

23M→24M

23.0 - 24.0 mi

Top 36%
×6stories
+12ft-82ft

Overall

10246

Females

2941

F18-39

2941

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

10057

Females

2969

F18-39

2969

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8948

Females

2532

F18-39

2532

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

10037

Females

3019

F18-39

3019

Passing Analysis

Category:
Athletes Passed
6066
Passed By
161
Net Change
+5905
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19458
5K → 10K61397+516#19458#18942
10K → 15K70620+686#18942#18256
15K → 20K8473+844#18256#17412
20K → Half1660+166#17412#17246
Half → 25K7052+703#17246#16543
25K → 30K8562+854#16543#15689
30K → 20M4321+431#15689#15258
20M → 21M4212+419#15258#14839
21M → 35K3360+336#14839#14503
35K → 23M3044+300#14503#14203
23M → 24M2037+196#14203#14007
24M → 40K2109+201#14007#13806
40K → 25.2M971+96#13806#13710
25.2M → Finish17013+157#13710#13553
TOTALS6066161+5905
📊

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