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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Bella Chirafisi

Bib: 10718 •F •Age: N/A

GA

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 32%
Gender (Female)
#0 / 12578
Top 15%
Age Group (F18-39)
#0 / 5716
Top 27%
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
22:28
3.11 mi
Rank: #10474
Start → 5K
22:28 | 7:14/mi
10K
44:57
6.21 mi
Rank: #10523 (-49)
5K → 10K
22:29 | 7:15/mi
15K
1:07:23
9.32 mi
Rank: #10425 (+98)
10K → 15K
22:26 | 7:14/mi
20K
1:29:48
12.43 mi
Rank: #10130 (+295)
15K → 20K
22:25 | 7:13/mi
HALF
1:34:39
13.11 mi
Rank: #10087 (+43)
20K → HALF
4:51 | 7:07/mi
25K
1:52:09
15.53 mi
Rank: #9891 (+196)
HALF → 25K
17:30 | 7:13/mi
30K
2:15:08
18.64 mi
Rank: #9646 (+245)
25K → 30K
22:59 | 7:24/mi
20M
2:25:14
20.00 mi
Rank: #9556 (+90)
30K → 20M
10:06 | 7:27/mi
21M
2:32:58
21.00 mi
Rank: #9417 (+139)
20M → 21M
7:44 | 7:44/mi
35K
2:38:17
21.75 mi
Rank: #9318 (+99)
21M → 35K
5:19 | 7:07/mi
23M
2:47:48
23.00 mi
Rank: #9269 (+49)
35K → 23M
9:31 | 7:37/mi
24M
2:55:09
24.00 mi
Rank: #9220 (+49)
23M → 24M
7:21 | 7:21/mi
40K
3:01:39
24.85 mi
Rank: #9200 (+20)
24M → 40K
6:30 | 7:37/mi
25.2M
3:04:32
25.20 mi
Rank: #9208 (-8)
40K → 25.2M
2:53 | 8:22/mi
FINISH
3:12:08
26.22 mi
Rank: #9245 (-37)
25.2M → FINISH
7:36 | 7:28/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:34:39
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time1:37:29
Pace7:27 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:39:5922:287:1422:28
7:14
-
10K
6.21 mi11:02:2844:577:1522:29
7:15
+0:01
15K
9.32 mi11:24:541:07:237:1422:26
7:14
-0:01
20K
12.43 mi11:47:191:29:487:1422:25
7:13
-0:01
HALF
13.11 mi11:52:101:34:397:144:51
7:07
-0:06
25K
15.53 mi12:09:401:52:097:1417:30
7:13
+0:06
30K
18.64 mi12:32:392:15:087:1522:59
7:24
+0:11
20M
20.00 mi12:42:452:25:147:1610:06
7:27
+0:03
21M
21.00 mi12:50:292:32:587:187:44
7:44
+0:17
35K
21.75 mi12:55:482:38:177:175:19
7:07
-0:37
23M
23.00 mi13:05:192:47:487:189:31
7:37
+0:30
24M
24.00 mi13:12:402:55:097:187:21
7:21
-0:16
40K
24.85 mi13:19:103:01:397:196:30
7:37
+0:16
25.2M
25.20 mi13:22:033:04:327:202:53
8:22
+0:45
FINISH
26.22 mi13:29:393:12:087:207:36
7:28
-0:54

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

7:07 /mi

Average Pace

7:20 /mi

Slowest Pace

8:22 /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

3:09:15

98% of race

Time at Steady Pace

2:53

2% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:20 /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 mi10:39:5922:287:1422:28
7:14
#10474
10K
6.21 mi11:02:2844:577:1522:29
7:15
#10523
15K
9.32 mi11:24:541:07:237:1422:26
7:14
#10425
20K
12.43 mi11:47:191:29:487:1422:25
7:13
#10130
HALF
13.11 mi11:52:101:34:397:144:51
7:07
#10087
25K
15.53 mi12:09:401:52:097:1417:30
7:13
#9891
30K
18.64 mi12:32:392:15:087:1522:59
7:24
#9646
20M
20.00 mi12:42:452:25:147:1610:06
7:27
#9556
21M
21.00 mi12:50:292:32:587:187:44
7:44
#9417
35K
21.75 mi12:55:482:38:177:175:19
7:07
#9318
23M
23.00 mi13:05:192:47:487:189:31
7:37
#9269
24M
24.00 mi13:12:402:55:097:187:21
7:21
#9220
40K
24.85 mi13:19:103:01:397:196:30
7:37
#9200
25.2M
25.20 mi13:22:033:04:327:202:53
8:22
#9208
FINISH
26.22 mi13:29:393:12:087:207:36
7:28
#9245
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 mi104742113211310311(Top 36%)2110(Top 17%)2110(Top 37%)
10K6.21 mi3.10 mi10523-492150-372150-3710602(Top 37%)2206(Top 18%)2206(Top 39%)
15K9.32 mi3.11 mi10425+982123+272123+2710311(Top 36%)2110(Top 17%)2110(Top 37%)
20K12.43 mi3.11 mi10130+2952012+1112012+1119489(Top 33%)1793(Top 14%)1793(Top 31%)
HALF13.11 mi0.68 mi10087+431996+161996+169637(Top 33%)1810(Top 14%)1810(Top 32%)
25K15.53 mi2.42 mi9891+1961916+801916+809020(Top 31%)1660(Top 13%)1660(Top 29%)
30K18.64 mi3.11 mi9646+2451865+511865+518851(Top 30%)1749(Top 14%)1749(Top 31%)
20M20.00 mi1.36 mi9556+901837+281837+288674(Top 30%)1783(Top 14%)1783(Top 31%)
21M21.00 mi1.00 mi9417+1391797+401797+408082(Top 28%)1638(Top 13%)1638(Top 29%)
35K21.75 mi0.75 mi9318+991769+281769+287943(Top 27%)1535(Top 12%)1535(Top 27%)
23M23.00 mi1.25 mi9269+491786-171786-179632(Top 33%)2398(Top 19%)2398(Top 42%)
24M24.00 mi1.00 mi9220+491790-41790-48987(Top 31%)2157(Top 17%)2157(Top 38%)
40K24.85 mi0.85 mi9200+201803-131803-139612(Top 33%)2557(Top 20%)2557(Top 45%)
25.2M25.20 mi0.35 mi9208-81817-141817-1410736(Top 37%)3177(Top 25%)3177(Top 56%)
FINISH26.22 mi1.02 mi9245-371867-501867-5011109(Top 38%)3395(Top 27%)3395(Top 59%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21
+97ft-345ft

Overall

10311

Females

2110

F18-39

2110

5K→10K

3.1 - 6.2 mi

Top 37%
×5
+79ft-138ft

Overall

10602

Females

2206

F18-39

2206

10K→15K

6.2 - 9.3 mi

Top 36%
×3
+67ft-78ft

Overall

10311

Females

2110

F18-39

2110

15K→20K

9.3 - 12.4 mi

Top 33%
×5
+106ft-86ft

Overall

9489

Females

1793

F18-39

1793

20K→HALF

12.4 - 13.1 mi

Top 33%
×2
+19ft-37ft

Overall

9637

Females

1810

F18-39

1810

HALF→25K

13.1 - 15.5 mi

Top 31%
×4
+66ft-88ft

Overall

9020

Females

1660

F18-39

1660

25K→30K

15.5 - 18.6 mi

Top 30%
×9
+181ft-148ft

Overall

8851

Females

1749

F18-39

1749

30K→20M

18.6 - 20.0 mi

Top 30%
×5
+64ft-50ft

Overall

8674

Females

1783

F18-39

1783

20M→21M

20.0 - 21.0 mi

Top 28%
×8
+106ft-24ft

Overall

8082

Females

1638

F18-39

1638

21M→35K

21.0 - 21.8 mi

Top 27%
×7
+17ft-86ft

Overall

7943

Females

1535

F18-39

1535

35K→23M

21.8 - 23.0 mi

Top 33%
×5
+23ft-63ft

Overall

9632

Females

2398

F18-39

2398

23M→24M

23.0 - 24.0 mi

Top 31%
×6
+12ft-82ft

Overall

8987

Females

2157

F18-39

2157

24M→40K

24.0 - 24.9 mi

Top 33%
×1
+6ft-20ft

Overall

9612

Females

2557

F18-39

2557

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1
+13ft-16ft

Overall

10736

Females

3177

F18-39

3177

25.2M→FINISH

25.2 - 26.2 mi

Top 38%
×2
+22ft-21ft

Overall

11109

Females

3395

F18-39

3395

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2100*
Passed By
822
Net Change
+1229
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10474
5K → 10K200200-49#10474#10523
10K → 15K215*117+98#10523#10425
15K → 20K337*42+295#10425#10130
20K → HALF529+43#10130#10087
HALF → 25K219*23+196#10087#9891
25K → 30K312*67+245#9891#9646
30K → 20M12232+90#9646#9556
20M → 21M16122+139#9556#9417
21M → 35K10910+99#9417#9318
35K → 23M11768+49#9318#9269
23M → 24M8738+49#9269#9220
24M → 40K7151+20#9220#9200
40K → 25.2M2735-8#9200#9208
25.2M → FINISH71108-37#9208#9245
TOTALS2100*822+1229

* 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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

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