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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Isabel Balderrabano

Bib: 23481 •F •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Top 44%
Age Group (F50-54)
#0 / 1233
Top 42%
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
25:40
3.11 mi
Rank: #18633
Start → 5K
25:40 | 8:16/mi
10K
51:30
6.21 mi
Rank: #18949 (-316)
5K → 10K
25:50 | 8:19/mi
15K
1:18:04
9.32 mi
Rank: #19456 (-507)
10K → 15K
26:34 | 8:34/mi
20K
1:45:15
12.43 mi
Rank: #19742 (-286)
15K → 20K
27:11 | 8:45/mi
HALF
1:50:58
13.11 mi
Rank: #19729 (+13)
20K → HALF
5:43 | 8:24/mi
25K
2:11:57
15.53 mi
Rank: #19685 (+44)
HALF → 25K
20:59 | 8:40/mi
30K
2:38:42
18.64 mi
Rank: #19298 (+387)
25K → 30K
26:45 | 8:37/mi
20M
2:50:31
20.00 mi
Rank: #19142 (+156)
30K → 20M
11:49 | 8:42/mi
21M
3:00:03
21.00 mi
Rank: #19105 (+37)
20M → 21M
9:32 | 9:32/mi
35K
3:06:03
21.75 mi
Rank: #18943 (+162)
21M → 35K
6:00 | 8:02/mi
23M
3:16:48
23.00 mi
Rank: #18783 (+160)
35K → 23M
10:45 | 8:36/mi
24M
3:24:46
24.00 mi
Rank: #18561 (+222)
23M → 24M
7:58 | 7:58/mi
40K
3:32:06
24.85 mi
Rank: #18474 (+87)
24M → 40K
7:20 | 8:35/mi
25.2M
3:35:24
25.20 mi
Rank: #18446 (+28)
40K → 25.2M
3:18 | 9:35/mi
FINISH
3:43:50
26.22 mi
Rank: #18366 (+80)
25.2M → FINISH
8:26 | 8:17/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:50:58
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time1:52:52
Pace8:37 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:3525:408:1625:40
8:16
-
10K
6.21 mi11:54:2551:308:1825:50
8:19
+0:03
15K
9.32 mi12:20:591:18:048:2326:34
8:34
+0:15
20K
12.43 mi12:48:101:45:158:2927:11
8:45
+0:11
HALF
13.11 mi12:53:531:50:588:285:43
8:24
-0:21
25K
15.53 mi13:14:522:11:578:3020:59
8:40
+0:16
30K
18.64 mi13:41:372:38:428:3126:45
8:37
-0:03
20M
20.00 mi13:53:262:50:318:3211:49
8:42
+0:05
21M
21.00 mi14:02:583:00:038:359:32
9:32
+0:50
35K
21.75 mi14:08:583:06:038:346:00
8:02
-1:30
23M
23.00 mi14:19:433:16:488:3410:45
8:36
+0:34
24M
24.00 mi14:27:413:24:468:327:58
7:58
-0:38
40K
24.85 mi14:35:013:32:068:337:20
8:35
+0:37
25.2M
25.20 mi14:38:193:35:248:333:18
9:35
+1:00
FINISH
26.22 mi14:46:453:43:508:338:26
8:17
-1:18

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

7:58 /mi

Average Pace

8:33 /mi

Slowest Pace

9:35 /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

1:13:54

33% of race

Time at Steady Pace

2:17:06

61% of race

Time at Slower Pace

12:50

6% of race

Average Pace: 8:32 /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 mi11:28:3525:408:1625:40
8:16
#18633
10K
6.21 mi11:54:2551:308:1825:50
8:19
#18949
15K
9.32 mi12:20:591:18:048:2326:34
8:34
#19456
20K
12.43 mi12:48:101:45:158:2927:11
8:45
#19742
HALF
13.11 mi12:53:531:50:588:285:43
8:24
#19729
25K
15.53 mi13:14:522:11:578:3020:59
8:40
#19685
30K
18.64 mi13:41:372:38:428:3126:45
8:37
#19298
20M
20.00 mi13:53:262:50:318:3211:49
8:42
#19142
21M
21.00 mi14:02:583:00:038:359:32
9:32
#19105
35K
21.75 mi14:08:583:06:038:346:00
8:02
#18943
23M
23.00 mi14:19:433:16:488:3410:45
8:36
#18783
24M
24.00 mi14:27:413:24:468:327:58
7:58
#18561
40K
24.85 mi14:35:013:32:068:337:20
8:35
#18474
25.2M
25.20 mi14:38:193:35:248:333:18
9:35
#18446
FINISH
26.22 mi14:46:453:43:508:338:26
8:17
#18366
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi186336868686820412(Top 70%)7796(Top 62%)7796(Top 632%)
10K6.21 mi3.10 mi18949-3167042-1747042-17419283(Top 66%)7180(Top 57%)7180(Top 582%)
15K9.32 mi3.11 mi19456-5077305-2637305-26320412(Top 70%)7796(Top 62%)7796(Top 632%)
20K12.43 mi3.11 mi19742-2867478-1737478-17320704(Top 71%)7991(Top 64%)7991(Top 648%)
HALF13.11 mi0.68 mi19729+137470+87470+819577(Top 67%)7356(Top 58%)7356(Top 597%)
25K15.53 mi2.42 mi19685+447456+147456+1419477(Top 67%)7386(Top 59%)7386(Top 599%)
30K18.64 mi3.11 mi19298+3877273+1837273+18317543(Top 60%)6422(Top 51%)6422(Top 521%)
20M20.00 mi1.36 mi19142+1567197+767197+7617414(Top 60%)6421(Top 51%)6421(Top 521%)
21M21.00 mi1.00 mi19105+377190+77190+718671(Top 64%)7144(Top 57%)7144(Top 579%)
35K21.75 mi0.75 mi18943+1627120+707120+7014702(Top 51%)5039(Top 40%)5039(Top 409%)
23M23.00 mi1.25 mi18783+1607049+717049+7116292(Top 56%)6016(Top 48%)6016(Top 488%)
24M24.00 mi1.00 mi18561+2226937+1126937+11213580(Top 47%)4578(Top 36%)4578(Top 371%)
40K24.85 mi0.85 mi18474+876909+286909+2816201(Top 56%)6095(Top 48%)6095(Top 494%)
25.2M25.20 mi0.35 mi18446+286895+146895+1417704(Top 61%)6876(Top 55%)6876(Top 558%)
FINISH26.22 mi1.02 mi18366+806866+296866+2916911(Top 58%)6461(Top 51%)6461(Top 524%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21
+97ft-345ft

Overall

20412

Females

7796

F50-54

7796

5K→10K

3.1 - 6.2 mi

Top 66%
×5
+79ft-138ft

Overall

19283

Females

7180

F50-54

7180

10K→15K

6.2 - 9.3 mi

Top 70%
×3
+67ft-78ft

Overall

20412

Females

7796

F50-54

7796

15K→20K

9.3 - 12.4 mi

Top 71%
×5
+106ft-86ft

Overall

20704

Females

7991

F50-54

7991

20K→HALF

12.4 - 13.1 mi

Top 67%
×2
+19ft-37ft

Overall

19577

Females

7356

F50-54

7356

HALF→25K

13.1 - 15.5 mi

Top 67%
×4
+66ft-88ft

Overall

19477

Females

7386

F50-54

7386

25K→30K

15.5 - 18.6 mi

Top 60%
×9
+181ft-148ft

Overall

17543

Females

6422

F50-54

6422

30K→20M

18.6 - 20.0 mi

Top 60%
×5
+64ft-50ft

Overall

17414

Females

6421

F50-54

6421

20M→21M

20.0 - 21.0 mi

Top 64%
×8
+106ft-24ft

Overall

18671

Females

7144

F50-54

7144

21M→35K

21.0 - 21.8 mi

Top 51%
×7
+17ft-86ft

Overall

14702

Females

5039

F50-54

5039

35K→23M

21.8 - 23.0 mi

Top 56%
×5
+23ft-63ft

Overall

16292

Females

6016

F50-54

6016

23M→24M

23.0 - 24.0 mi

Top 47%
×6
+12ft-82ft

Overall

13580

Females

4578

F50-54

4578

24M→40K

24.0 - 24.9 mi

Top 56%
×1
+6ft-20ft

Overall

16201

Females

6095

F50-54

6095

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1
+13ft-16ft

Overall

17704

Females

6876

F50-54

6876

25.2M→FINISH

25.2 - 26.2 mi

Top 58%
×2
+22ft-21ft

Overall

16911

Females

6461

F50-54

6461

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1969*
Passed By
916
Net Change
+267
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18633
5K → 10K154200-316#18633#18949
10K → 15K48200-507#18949#19456
15K → 20K75200-286#19456#19742
20K → HALF3522+13#19742#19729
HALF → 25K14197+44#19729#19685
25K → 30K413*26+387#19685#19298
30K → 20M17923+156#19298#19142
20M → 21M9659+37#19142#19105
21M → 35K1642+162#19105#18943
35K → 23M17515+160#18943#18783
23M → 24M223*1+222#18783#18561
24M → 40K10619+87#18561#18474
40K → 25.2M4618+28#18474#18446
25.2M → FINISH11434+80#18446#18366
TOTALS1969*916+267

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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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