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BOSTON MARATHON 2026

Bailey Borello

Bib: 17959•F

CA

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0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 39%
Age Group (F18-39)
#0 / 5716
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
24:01
3.11 mi
Rank: #14841
Start → 5K
24:01 | 7:44/mi
10K
48:08
6.21 mi
Rank: #15037 (-196)
5K → 10K
24:07 | 7:46/mi
15K
1:12:04
9.32 mi
Rank: #14820 (+217)
10K → 15K
23:56 | 7:43/mi
20K
1:36:10
12.43 mi
Rank: #14631 (+189)
15K → 20K
24:06 | 7:46/mi
HALF
1:41:29
13.11 mi
Rank: #14679 (-48)
20K → HALF
5:19 | 7:48/mi
25K
2:00:36
15.53 mi
Rank: #14627 (+52)
HALF → 25K
19:07 | 7:53/mi
30K
2:26:12
18.64 mi
Rank: #14709 (-82)
25K → 30K
25:36 | 8:15/mi
20M
2:37:40
20.00 mi
Rank: #14799 (-90)
30K → 20M
11:28 | 8:27/mi
21M
2:46:33
21.00 mi
Rank: #14796 (+3)
20M → 21M
8:53 | 8:53/mi
35K
2:52:40
21.75 mi
Rank: #14830 (-34)
21M → 35K
6:07 | 8:11/mi
23M
3:03:11
23.00 mi
Rank: #14840 (-10)
35K → 23M
10:31 | 8:25/mi
24M
3:11:14
24.00 mi
Rank: #14792 (+48)
23M → 24M
8:03 | 8:03/mi
40K
3:18:24
24.85 mi
Rank: #14790 (+2)
24M → 40K
7:10 | 8:23/mi
25.2M
3:21:24
25.20 mi
Rank: #14770 (+20)
40K → 25.2M
3:00 | 8:42/mi
FINISH
3:29:39
26.22 mi
Rank: #14840 (-70)
25.2M → FINISH
8:15 | 8:06/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:29
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:48:10
Pace8:16 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:06:2624:017:4424:01
7:44
-
10K
6.21 mi11:30:3348:087:4524:07
7:46
+0:02
15K
9.32 mi11:54:291:12:047:4423:56
7:43
-0:03
20K
12.43 mi12:18:351:36:107:4524:06
7:46
+0:03
HALF
13.11 mi12:23:541:41:297:455:19
7:48
+0:02
25K
15.53 mi12:43:012:00:367:4619:07
7:53
+0:05
30K
18.64 mi13:08:372:26:127:5125:36
8:15
+0:22
20M
20.00 mi13:20:052:37:407:5411:28
8:27
+0:12
21M
21.00 mi13:28:582:46:337:568:53
8:53
+0:26
35K
21.75 mi13:35:052:52:407:576:07
8:11
-0:42
23M
23.00 mi13:45:363:03:117:5810:31
8:25
+0:14
24M
24.00 mi13:53:393:11:147:598:03
8:03
-0:22
40K
24.85 mi14:00:493:18:247:597:10
8:23
+0:20
25.2M
25.20 mi14:03:493:21:248:003:00
8:42
+0:19
FINISH
26.22 mi14:12:043:29:398:018:15
8:06
-0:36

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:43 /mi

Average Pace

8:00 /mi

Slowest Pace

8:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:17:46

94% of race

Time at Steady Pace

11:53

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:00 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:06:2624:017:4424:01
7:44
#14841
10K
6.21 mi11:30:3348:087:4524:07
7:46
#15037
15K
9.32 mi11:54:291:12:047:4423:56
7:43
#14820
20K
12.43 mi12:18:351:36:107:4524:06
7:46
#14631
HALF
13.11 mi12:23:541:41:297:455:19
7:48
#14679
25K
15.53 mi12:43:012:00:367:4619:07
7:53
#14627
30K
18.64 mi13:08:372:26:127:5125:36
8:15
#14709
20M
20.00 mi13:20:052:37:407:5411:28
8:27
#14799
21M
21.00 mi13:28:582:46:337:568:53
8:53
#14796
35K
21.75 mi13:35:052:52:407:576:07
8:11
#14830
23M
23.00 mi13:45:363:03:117:5810:31
8:25
#14840
24M
24.00 mi13:53:393:11:147:598:03
8:03
#14792
40K
24.85 mi14:00:493:18:247:597:10
8:23
#14790
25.2M
25.20 mi14:03:493:21:248:003:00
8:42
#14770
FINISH
26.22 mi14:12:043:29:398:018:15
8:06
#14840
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi148414583458314591(Top 50%)4500(Top 36%)4500(Top 79%)
10K6.21 mi3.10 mi15037-1964743-1604743-16015310(Top 53%)4898(Top 39%)4898(Top 86%)
15K9.32 mi3.11 mi14820+2174622+1214622+12114591(Top 50%)4500(Top 36%)4500(Top 79%)
20K12.43 mi3.11 mi14631+1894508+1144508+11414210(Top 49%)4334(Top 34%)4334(Top 76%)
HALF13.11 mi0.68 mi14679-484540-324540-3215581(Top 54%)5081(Top 40%)5081(Top 89%)
25K15.53 mi2.42 mi14627+524532+84532+814493(Top 50%)4573(Top 36%)4573(Top 80%)
30K18.64 mi3.11 mi14709-824620-884620-8815199(Top 52%)5078(Top 40%)5078(Top 89%)
20M20.00 mi1.36 mi14799-904709-894709-8915856(Top 55%)5554(Top 44%)5554(Top 97%)
21M21.00 mi1.00 mi14796+34737-284737-2815491(Top 53%)5407(Top 43%)5407(Top 95%)
35K21.75 mi0.75 mi14830-344772-354772-3515658(Top 54%)5550(Top 44%)5550(Top 97%)
23M23.00 mi1.25 mi14840-104802-304802-3015134(Top 52%)5333(Top 42%)5333(Top 93%)
24M24.00 mi1.00 mi14792+484793+94793+914137(Top 49%)4874(Top 39%)4874(Top 85%)
40K24.85 mi0.85 mi14790+24817-244817-2414975(Top 52%)5416(Top 43%)5416(Top 95%)
25.2M25.20 mi0.35 mi14770+204812+54812+512971(Top 45%)4359(Top 35%)4359(Top 76%)
FINISH26.22 mi1.02 mi14840-704867-554867-5515802(Top 54%)5834(Top 46%)5834(Top 102%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21
+97ft-345ft

Overall

14591

Females

4500

F18-39

4500

5K→10K

3.1 - 6.2 mi

Top 53%
×5
+79ft-138ft

Overall

15310

Females

4898

F18-39

4898

10K→15K

6.2 - 9.3 mi

Top 50%
×3
+67ft-78ft

Overall

14591

Females

4500

F18-39

4500

15K→20K

9.3 - 12.4 mi

Top 49%
×5
+106ft-86ft

Overall

14210

Females

4334

F18-39

4334

20K→HALF

12.4 - 13.1 mi

Top 54%
×2
+19ft-37ft

Overall

15581

Females

5081

F18-39

5081

HALF→25K

13.1 - 15.5 mi

Top 50%
×4
+66ft-88ft

Overall

14493

Females

4573

F18-39

4573

25K→30K

15.5 - 18.6 mi

Top 52%
×9
+181ft-148ft

Overall

15199

Females

5078

F18-39

5078

30K→20M

18.6 - 20.0 mi

Top 55%
×5
+64ft-50ft

Overall

15856

Females

5554

F18-39

5554

20M→21M

20.0 - 21.0 mi

Top 53%
×8
+106ft-24ft

Overall

15491

Females

5407

F18-39

5407

21M→35K

21.0 - 21.8 mi

Top 54%
×7
+17ft-86ft

Overall

15658

Females

5550

F18-39

5550

35K→23M

21.8 - 23.0 mi

Top 52%
×5
+23ft-63ft

Overall

15134

Females

5333

F18-39

5333

23M→24M

23.0 - 24.0 mi

Top 49%
×6
+12ft-82ft

Overall

14137

Females

4874

F18-39

4874

24M→40K

24.0 - 24.9 mi

Top 52%
×1
+6ft-20ft

Overall

14975

Females

5416

F18-39

5416

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1
+13ft-16ft

Overall

12971

Females

4359

F18-39

4359

25.2M→FINISH

25.2 - 26.2 mi

Top 54%
×2
+22ft-21ft

Overall

15802

Females

5834

F18-39

5834

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1727
Passed By
1726
Net Change
+1
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14841
5K → 10K214410-196#14841#15037
10K → 15K327110+217#15037#14820
15K → 20K28192+189#14820#14631
20K → HALF1765-48#14631#14679
HALF → 25K156104+52#14679#14627
25K → 30K171253-82#14627#14709
30K → 20M74164-90#14709#14799
20M → 21M10097+3#14799#14796
21M → 35K4478-34#14796#14830
35K → 23M101111-10#14830#14840
23M → 24M9244+48#14840#14792
24M → 40K7068+2#14792#14790
40K → 25.2M3414+20#14790#14770
25.2M → FINISH46116-70#14770#14840
TOTALS17271726+1
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing