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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Natalia Calderon

Bib: 18182 •F •Age: N/A

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 27%
Gender (Female)
#0 / 12578
Top 10%
Age Group (F18-39)
#0 / 5716
Top 19%
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
22:10
3.11 mi
Rank: #9636
Start → 5K
22:10 | 7:09/mi
10K
44:25
6.21 mi
Rank: #9746 (-110)
5K → 10K
22:15 | 7:10/mi
15K
1:06:50
9.32 mi
Rank: #9875 (-129)
10K → 15K
22:25 | 7:13/mi
20K
1:29:13
12.43 mi
Rank: #9705 (+170)
15K → 20K
22:23 | 7:13/mi
HALF
1:34:03
13.11 mi
Rank: #9679 (+26)
20K → HALF
4:50 | 7:06/mi
25K
1:51:29
15.53 mi
Rank: #9522 (+157)
HALF → 25K
17:26 | 7:12/mi
30K
2:14:09
18.64 mi
Rank: #9216 (+306)
25K → 30K
22:40 | 7:18/mi
20M
2:24:04
20.00 mi
Rank: #9041 (+175)
30K → 20M
9:55 | 7:19/mi
21M
2:31:26
21.00 mi
Rank: #8815 (+226)
20M → 21M
7:22 | 7:22/mi
35K
2:36:43
21.75 mi
Rank: #8732 (+83)
21M → 35K
5:17 | 7:04/mi
23M
2:45:34
23.00 mi
Rank: #8499 (+233)
35K → 23M
8:51 | 7:05/mi
24M
2:52:22
24.00 mi
Rank: #8296 (+203)
23M → 24M
6:48 | 6:48/mi
40K
2:58:12
24.85 mi
Rank: #8111 (+185)
24M → 40K
5:50 | 6:50/mi
25.2M
3:00:44
25.20 mi
Rank: #8010 (+101)
40K → 25.2M
2:32 | 7:21/mi
FINISH
3:07:30
26.22 mi
Rank: #7850 (+160)
25.2M → FINISH
6:46 | 6:39/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:34:03
Pace7:11 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:33:27
Pace7:08 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:04:1222:107:0922:10
7:09
-
10K
6.21 mi11:26:2744:257:0922:15
7:10
+0:01
15K
9.32 mi11:48:521:06:507:1122:25
7:13
+0:03
20K
12.43 mi12:11:151:29:137:1122:23
7:13
0:00
HALF
13.11 mi12:16:051:34:037:114:50
7:06
-0:07
25K
15.53 mi12:33:311:51:297:1117:26
7:12
+0:06
30K
18.64 mi12:56:112:14:097:1222:40
7:18
+0:06
20M
20.00 mi13:06:062:24:047:139:55
7:19
+0:01
21M
21.00 mi13:13:282:31:267:137:22
7:22
+0:03
35K
21.75 mi13:18:452:36:437:135:17
7:04
-0:18
23M
23.00 mi13:27:362:45:347:128:51
7:05
+0:01
24M
24.00 mi13:34:242:52:227:116:48
6:48
-0:17
40K
24.85 mi13:40:142:58:127:115:50
6:50
+0:02
25.2M
25.20 mi13:42:463:00:447:112:32
7:21
+0:31
FINISH
26.22 mi13:49:323:07:307:106:46
6:39
-0:42

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

6:39 /mi

Average Pace

7:09 /mi

Slowest Pace

7:22 /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

2:47:41

89% of race

Time at Steady Pace

19:49

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:09 /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 mi11:04:1222:107:0922:10
7:09
#9636
10K
6.21 mi11:26:2744:257:0922:15
7:10
#9746
15K
9.32 mi11:48:521:06:507:1122:25
7:13
#9875
20K
12.43 mi12:11:151:29:137:1122:23
7:13
#9705
HALF
13.11 mi12:16:051:34:037:114:50
7:06
#9679
25K
15.53 mi12:33:311:51:297:1117:26
7:12
#9522
30K
18.64 mi12:56:112:14:097:1222:40
7:18
#9216
20M
20.00 mi13:06:062:24:047:139:55
7:19
#9041
21M
21.00 mi13:13:282:31:267:137:22
7:22
#8815
35K
21.75 mi13:18:452:36:437:135:17
7:04
#8732
23M
23.00 mi13:27:362:45:347:128:51
7:05
#8499
24M
24.00 mi13:34:242:52:227:116:48
6:48
#8296
40K
24.85 mi13:40:142:58:127:115:50
6:50
#8111
25.2M
25.20 mi13:42:463:00:447:112:32
7:21
#8010
FINISH
26.22 mi13:49:323:07:307:106:46
6:39
#7850
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 mi96361704170410260(Top 35%)2082(Top 17%)2082(Top 36%)
10K6.21 mi3.10 mi9746-1101762-581762-589930(Top 34%)1873(Top 15%)1873(Top 33%)
15K9.32 mi3.11 mi9875-1291846-841846-8410260(Top 35%)2082(Top 17%)2082(Top 36%)
20K12.43 mi3.11 mi9705+1701795+511795+519394(Top 32%)1741(Top 14%)1741(Top 30%)
HALF13.11 mi0.68 mi9679+261779+161779+169390(Top 32%)1670(Top 13%)1670(Top 29%)
25K15.53 mi2.42 mi9522+1571738+411738+418798(Top 30%)1564(Top 12%)1564(Top 27%)
30K18.64 mi3.11 mi9216+3061651+871651+878061(Top 28%)1391(Top 11%)1391(Top 24%)
20M20.00 mi1.36 mi9041+1751599+521599+527675(Top 26%)1340(Top 11%)1340(Top 23%)
21M21.00 mi1.00 mi8815+2261531+681531+685704(Top 20%)776(Top 6%)776(Top 14%)
35K21.75 mi0.75 mi8732+831521+101521+107603(Top 26%)1383(Top 11%)1383(Top 24%)
23M23.00 mi1.25 mi8499+2331452+691452+695969(Top 21%)876(Top 7%)876(Top 15%)
24M24.00 mi1.00 mi8296+2031395+571395+575182(Top 18%)709(Top 6%)709(Top 12%)
40K24.85 mi0.85 mi8111+1851341+541341+544408(Top 15%)570(Top 5%)570(Top 10%)
25.2M25.20 mi0.35 mi8010+1011310+311310+314450(Top 15%)645(Top 5%)645(Top 11%)
FINISH26.22 mi1.02 mi7850+1601276+341276+345087(Top 18%)829(Top 7%)829(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21
+97ft-345ft

Overall

10260

Females

2082

F18-39

2082

5K→10K

3.1 - 6.2 mi

Top 34%
×5
+79ft-138ft

Overall

9930

Females

1873

F18-39

1873

10K→15K

6.2 - 9.3 mi

Top 35%
×3
+67ft-78ft

Overall

10260

Females

2082

F18-39

2082

15K→20K

9.3 - 12.4 mi

Top 32%
×5
+106ft-86ft

Overall

9394

Females

1741

F18-39

1741

20K→HALF

12.4 - 13.1 mi

Top 32%
×2
+19ft-37ft

Overall

9390

Females

1670

F18-39

1670

HALF→25K

13.1 - 15.5 mi

Top 30%
×4
+66ft-88ft

Overall

8798

Females

1564

F18-39

1564

25K→30K

15.5 - 18.6 mi

Top 28%
×9
+181ft-148ft

Overall

8061

Females

1391

F18-39

1391

30K→20M

18.6 - 20.0 mi

Top 26%
×5
+64ft-50ft

Overall

7675

Females

1340

F18-39

1340

20M→21M

20.0 - 21.0 mi

Top 20%
×8
+106ft-24ft

Overall

5704

Females

776

F18-39

776

21M→35K

21.0 - 21.8 mi

Top 26%
×7
+17ft-86ft

Overall

7603

Females

1383

F18-39

1383

35K→23M

21.8 - 23.0 mi

Top 21%
×5
+23ft-63ft

Overall

5969

Females

876

F18-39

876

23M→24M

23.0 - 24.0 mi

Top 18%
×6
+12ft-82ft

Overall

5182

Females

709

F18-39

709

24M→40K

24.0 - 24.9 mi

Top 15%
×1
+6ft-20ft

Overall

4408

Females

570

F18-39

570

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1
+13ft-16ft

Overall

4450

Females

645

F18-39

645

25.2M→FINISH

25.2 - 26.2 mi

Top 18%
×2
+22ft-21ft

Overall

5087

Females

829

F18-39

829

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2553*
Passed By
610
Net Change
+1786
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9636
5K → 10K189200-110#9636#9746
10K → 15K129200-129#9746#9875
15K → 20K245*75+170#9875#9705
20K → HALF4014+26#9705#9679
HALF → 25K18932+157#9679#9522
25K → 30K331*25+306#9522#9216
30K → 20M19116+175#9216#9041
20M → 21M230*4+226#9041#8815
21M → 35K10219+83#8815#8732
35K → 23M238*5+233#8732#8499
23M → 24M210*7+203#8499#8296
24M → 40K1850+185#8296#8111
40K → 25.2M1010+101#8111#8010
25.2M → FINISH17313+160#8010#7850
TOTALS2553*610+1786

* 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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Activity Data

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