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BOSTON MARATHON 2026

Julia Simkus

Bib: 17935β€’F

NY

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 35%
Gender (Female)
#0 / 12578
Top 18%
Age Group (F18-39)
#0 / 5716
Top 33%
Race Day Weather
51Β°/41Β°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
23:16
3.11 mi
Rank: #12683
Start β†’ 5K
23:16 | 7:30/mi
10K
46:29
6.21 mi
Rank: #12668 (+15)
5K β†’ 10K
23:13 | 7:29/mi
15K
1:09:30
9.32 mi
Rank: #12444 (+224)
10K β†’ 15K
23:01 | 7:25/mi
20K
1:32:35
12.43 mi
Rank: #12149 (+295)
15K β†’ 20K
23:05 | 7:26/mi
HALF
1:37:34
13.11 mi
Rank: #12102 (+47)
20K β†’ HALF
4:59 | 7:19/mi
25K
1:55:36
15.53 mi
Rank: #11904 (+198)
HALF β†’ 25K
18:02 | 7:27/mi
30K
2:19:03
18.64 mi
Rank: #11543 (+361)
25K β†’ 30K
23:27 | 7:33/mi
20M
2:29:06
20.00 mi
Rank: #11284 (+259)
30K β†’ 20M
10:03 | 7:24/mi
21M
2:36:52
21.00 mi
Rank: #11060 (+224)
20M β†’ 21M
7:46 | 7:46/mi
35K
2:42:18
21.75 mi
Rank: #10960 (+100)
21M β†’ 35K
5:26 | 7:16/mi
23M
2:51:32
23.00 mi
Rank: #10711 (+249)
35K β†’ 23M
9:14 | 7:23/mi
24M
2:58:46
24.00 mi
Rank: #10545 (+166)
23M β†’ 24M
7:14 | 7:14/mi
40K
3:05:03
24.85 mi
Rank: #10402 (+143)
24M β†’ 40K
6:17 | 7:21/mi
25.2M
3:07:43
25.20 mi
Rank: #10320 (+82)
40K β†’ 25.2M
2:40 | 7:44/mi
FINISH
3:14:46
26.22 mi
Rank: #10154 (+166)
25.2M β†’ FINISH
7:03 | 6:56/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Halfβš–οΈ Balanced
via HALF
Distance13.11 mi
Time1:37:34
Pace7:27 /mi
2nd Halfβš–οΈ Balanced
Distance13.11 mi
Time1:37:12
Pace7:25 /mi
πŸ“ŠEven Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:05:2223:167:3023:16
7:30
-
10K
6.21 mi11:28:3546:297:2923:13
7:29
-0:01
15K
9.32 mi11:51:361:09:307:2823:01
7:25
-0:04
20K
12.43 mi12:14:411:32:357:2723:05
7:26
+0:01
HALF
13.11 mi12:19:401:37:347:274:59
7:19
-0:07
25K
15.53 mi12:37:421:55:367:2718:02
7:27
+0:08
30K
18.64 mi13:01:092:19:037:2823:27
7:33
+0:06
20M
20.00 mi13:11:122:29:067:2810:03
7:24
-0:09
21M
21.00 mi13:18:582:36:527:297:46
7:46
+0:22
35K
21.75 mi13:24:242:42:187:285:26
7:16
-0:30
23M
23.00 mi13:33:382:51:327:289:14
7:23
+0:07
24M
24.00 mi13:40:522:58:467:277:14
7:14
-0:09
40K
24.85 mi13:47:093:05:037:276:17
7:21
+0:07
25.2M
25.20 mi13:49:493:07:437:272:40
7:44
+0:23
FINISH
26.22 mi13:56:523:14:467:277:03
6:56
-0:48

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

6:56 /mi

Average Pace

7:26 /mi

Slowest Pace

7:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

3:04:20

95% of race

Time at Steady Pace

10:26

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi11:05:2223:167:3023:16
7:30
#12683
10K
6.21 mi11:28:3546:297:2923:13
7:29
#12668
15K
9.32 mi11:51:361:09:307:2823:01
7:25
#12444
20K
12.43 mi12:14:411:32:357:2723:05
7:26
#12149
HALF
13.11 mi12:19:401:37:347:274:59
7:19
#12102
25K
15.53 mi12:37:421:55:367:2718:02
7:27
#11904
30K
18.64 mi13:01:092:19:037:2823:27
7:33
#11543
20M
20.00 mi13:11:122:29:067:2810:03
7:24
#11284
21M
21.00 mi13:18:582:36:527:297:46
7:46
#11060
35K
21.75 mi13:24:242:42:187:285:26
7:16
#10960
23M
23.00 mi13:33:382:51:327:289:14
7:23
#10711
24M
24.00 mi13:40:522:58:467:277:14
7:14
#10545
40K
24.85 mi13:47:093:05:037:276:17
7:21
#10402
25.2M
25.20 mi13:49:493:07:437:272:40
7:44
#10320
FINISH
26.22 mi13:56:523:14:467:277:03
6:56
#10154
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 mi126833303330312015(Top 41%)3031(Top 24%)3031(Top 53%)
10K6.21 mi3.10 mi12668+153317-143317-1412693(Top 44%)3362(Top 27%)3362(Top 59%)
15K9.32 mi3.11 mi12444+2243209+1083209+10812015(Top 41%)3031(Top 24%)3031(Top 53%)
20K12.43 mi3.11 mi12149+2953073+1363073+13611395(Top 39%)2780(Top 22%)2780(Top 49%)
HALF13.11 mi0.68 mi12102+473050+233050+2311322(Top 39%)2643(Top 21%)2643(Top 46%)
25K15.53 mi2.42 mi11904+1982980+702980+7010899(Top 38%)2578(Top 20%)2578(Top 45%)
30K18.64 mi3.11 mi11543+3612826+1542826+15410045(Top 35%)2285(Top 18%)2285(Top 40%)
20M20.00 mi1.36 mi11284+2592718+1082718+1088408(Top 29%)1672(Top 13%)1672(Top 29%)
21M21.00 mi1.00 mi11060+2242629+892629+898302(Top 29%)1740(Top 14%)1740(Top 30%)
35K21.75 mi0.75 mi10960+1002597+322597+329070(Top 31%)2055(Top 16%)2055(Top 36%)
23M23.00 mi1.25 mi10711+2492501+962501+968018(Top 28%)1655(Top 13%)1655(Top 29%)
24M24.00 mi1.00 mi10545+1662443+582443+588142(Top 28%)1799(Top 14%)1799(Top 31%)
40K24.85 mi0.85 mi10402+1432391+522391+527849(Top 27%)1740(Top 14%)1740(Top 30%)
25.2M25.20 mi0.35 mi10320+822367+242367+246757(Top 23%)1352(Top 11%)1352(Top 24%)
FINISH26.22 mi1.02 mi10154+1662313+542313+546978(Top 24%)1484(Top 12%)1484(Top 26%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
Γ—21
+97ft-345ft

Overall

12015

Females

3031

F18-39

3031

5K→10K

3.1 - 6.2 mi

Top 44%
Γ—5
+79ft-138ft

Overall

12693

Females

3362

F18-39

3362

10K→15K

6.2 - 9.3 mi

Top 41%
Γ—3
+67ft-78ft

Overall

12015

Females

3031

F18-39

3031

15K→20K

9.3 - 12.4 mi

Top 39%
Γ—5
+106ft-86ft

Overall

11395

Females

2780

F18-39

2780

20K→HALF

12.4 - 13.1 mi

Top 39%
Γ—2
+19ft-37ft

Overall

11322

Females

2643

F18-39

2643

HALF→25K

13.1 - 15.5 mi

Top 38%
Γ—4
+66ft-88ft

Overall

10899

Females

2578

F18-39

2578

25K→30K

15.5 - 18.6 mi

Top 35%
Γ—9
+181ft-148ft

Overall

10045

Females

2285

F18-39

2285

30K→20M

18.6 - 20.0 mi

Top 29%
Γ—5
+64ft-50ft

Overall

8408

Females

1672

F18-39

1672

20M→21M

20.0 - 21.0 mi

Top 29%
Γ—8
+106ft-24ft

Overall

8302

Females

1740

F18-39

1740

21M→35K

21.0 - 21.8 mi

Top 31%
Γ—7
+17ft-86ft

Overall

9070

Females

2055

F18-39

2055

35K→23M

21.8 - 23.0 mi

Top 28%
Γ—5
+23ft-63ft

Overall

8018

Females

1655

F18-39

1655

23M→24M

23.0 - 24.0 mi

Top 28%
Γ—6
+12ft-82ft

Overall

8142

Females

1799

F18-39

1799

24M→40K

24.0 - 24.9 mi

Top 27%
Γ—1
+6ft-20ft

Overall

7849

Females

1740

F18-39

1740

40K→25.2M

24.9 - 25.2 mi

Top 23%
Γ—1
+13ft-16ft

Overall

6757

Females

1352

F18-39

1352

25.2M→FINISH

25.2 - 26.2 mi

Top 24%
Γ—2
+22ft-21ft

Overall

6978

Females

1484

F18-39

1484

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3079
Passed By
550
Net Change
+2529
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#12683
5K β†’ 10K272257+15#12683#12668
10K β†’ 15K31288+224#12668#12444
15K β†’ 20K34348+295#12444#12149
20K β†’ HALF6013+47#12149#12102
HALF β†’ 25K23638+198#12102#11904
25K β†’ 30K39231+361#11904#11543
30K β†’ 20M2656+259#11543#11284
20M β†’ 21M23410+224#11284#11060
21M β†’ 35K11111+100#11060#10960
35K β†’ 23M2589+249#10960#10711
23M β†’ 24M18014+166#10711#10545
24M β†’ 40K1507+143#10545#10402
40K β†’ 25.2M864+82#10402#10320
25.2M β†’ FINISH18014+166#10320#10154
TOTALS3079550+2529
πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace 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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing