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BOSTON MARATHON 2026

Julia Siemen

Bib: 29283β€’F

NC

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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
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
30:15
3.11 mi
Rank: #25189
Start β†’ 5K
30:15 | 9:45/mi
10K
59:50
6.21 mi
Rank: #24903 (+286)
5K β†’ 10K
29:35 | 9:32/mi
15K
1:29:06
9.32 mi
Rank: #24660 (+243)
10K β†’ 15K
29:16 | 9:26/mi
20K
1:58:37
12.43 mi
Rank: #24456 (+204)
15K β†’ 20K
29:31 | 9:31/mi
HALF
2:04:59
13.11 mi
Rank: #24421 (+35)
20K β†’ HALF
6:22 | 9:21/mi
25K
2:28:27
15.53 mi
Rank: #24271 (+150)
HALF β†’ 25K
23:28 | 9:41/mi
30K
3:00:01
18.64 mi
Rank: #24084 (+187)
25K β†’ 30K
31:34 | 10:10/mi
20M
3:14:02
20.00 mi
Rank: #24016 (+68)
30K β†’ 20M
14:01 | 10:20/mi
21M
3:24:48
21.00 mi
Rank: #23914 (+102)
20M β†’ 21M
10:46 | 10:46/mi
35K
3:32:24
21.75 mi
Rank: #23900 (+14)
21M β†’ 35K
7:36 | 10:10/mi
23M
3:45:40
23.00 mi
Rank: #23872 (+28)
35K β†’ 23M
13:16 | 10:37/mi
24M
3:55:29
24.00 mi
Rank: #23796 (+76)
23M β†’ 24M
9:49 | 9:49/mi
40K
4:04:17
24.85 mi
Rank: #23755 (+41)
24M β†’ 40K
8:48 | 10:18/mi
25.2M
4:08:14
25.20 mi
Rank: #23749 (+6)
40K β†’ 25.2M
3:57 | 11:28/mi
FINISH
4:17:46
26.22 mi
Rank: #23664 (+85)
25.2M β†’ FINISH
9:32 | 9:22/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:04:59
Pace9:33 /mi
2nd Half
Distance13.11 mi
Time2:12:47
Pace10:08 /mi
πŸ“ŠPositive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3530:159:4530:15
9:45
-
10K
6.21 mi12:23:1059:509:3829:35
9:32
-0:13
15K
9.32 mi12:52:261:29:069:3429:16
9:26
-0:06
20K
12.43 mi13:21:571:58:379:3329:31
9:31
+0:05
HALF
13.11 mi13:28:192:04:599:336:22
9:21
-0:10
25K
15.53 mi13:51:472:28:279:3423:28
9:41
+0:20
30K
18.64 mi14:23:213:00:019:4031:34
10:10
+0:29
20M
20.00 mi14:37:223:14:029:4314:01
10:20
+0:10
21M
21.00 mi14:48:083:24:489:4610:46
10:46
+0:26
35K
21.75 mi14:55:443:32:249:467:36
10:10
-0:36
23M
23.00 mi15:09:003:45:409:4913:16
10:37
+0:27
24M
24.00 mi15:18:493:55:299:499:49
9:49
-0:48
40K
24.85 mi15:27:374:04:179:508:48
10:18
+0:29
25.2M
25.20 mi15:31:344:08:149:523:57
11:28
+1:10
FINISH
26.22 mi15:41:064:17:469:519:32
9:22
-2:06

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

9:21 /mi

Average Pace

9:50 /mi

Slowest Pace

11:28 /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

1:14:41

29% of race

Time at Steady Pace

1:33:07

36% of race

Time at Slower Pace

1:29:58

35% of race

Average Pace: 9:50 /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 mi11:53:3530:159:4530:15
9:45
#25189
10K
6.21 mi12:23:1059:509:3829:35
9:32
#24903
15K
9.32 mi12:52:261:29:069:3429:16
9:26
#24660
20K
12.43 mi13:21:571:58:379:3329:31
9:31
#24456
HALF
13.11 mi13:28:192:04:599:336:22
9:21
#24421
25K
15.53 mi13:51:472:28:279:3423:28
9:41
#24271
30K
18.64 mi14:23:213:00:019:4031:34
10:10
#24084
20M
20.00 mi14:37:223:14:029:4314:01
10:20
#24016
21M
21.00 mi14:48:083:24:489:4610:46
10:46
#23914
35K
21.75 mi14:55:443:32:249:467:36
10:10
#23900
23M
23.00 mi15:09:003:45:409:4913:16
10:37
#23872
24M
24.00 mi15:18:493:55:299:499:49
9:49
#23796
40K
24.85 mi15:27:374:04:179:508:48
10:18
#23755
25.2M
25.20 mi15:31:344:08:149:523:57
11:28
#23749
FINISH
26.22 mi15:41:064:17:469:519:32
9:22
#23664
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 mi25189102701027024207(Top 83%)9763(Top 78%)9763(Top 171%)
10K6.21 mi3.10 mi24903+28610122+14810122+14824654(Top 85%)10003(Top 80%)10003(Top 175%)
15K9.32 mi3.11 mi24660+2439996+1269996+12624207(Top 83%)9763(Top 78%)9763(Top 171%)
20K12.43 mi3.11 mi24456+2049893+1039893+10323766(Top 82%)9576(Top 76%)9576(Top 168%)
HALF13.11 mi0.68 mi24421+359872+219872+2123938(Top 82%)9658(Top 77%)9658(Top 169%)
25K15.53 mi2.42 mi24271+1509813+599813+5923505(Top 81%)9474(Top 75%)9474(Top 166%)
30K18.64 mi3.11 mi24084+1879740+739740+7323528(Top 81%)9580(Top 76%)9580(Top 168%)
20M20.00 mi1.36 mi24016+689717+239717+2323410(Top 81%)9596(Top 76%)9596(Top 168%)
21M21.00 mi1.00 mi23914+1029674+439674+4322593(Top 78%)9198(Top 73%)9198(Top 161%)
35K21.75 mi0.75 mi23900+149685-119685-1123572(Top 81%)9748(Top 78%)9748(Top 171%)
23M23.00 mi1.25 mi23872+289690-59690-523632(Top 81%)9852(Top 78%)9852(Top 172%)
24M24.00 mi1.00 mi23796+769655+359655+3522308(Top 77%)9189(Top 73%)9189(Top 161%)
40K24.85 mi0.85 mi23755+419654+19654+122710(Top 78%)9463(Top 75%)9463(Top 166%)
25.2M25.20 mi0.35 mi23749+69660-69660-623419(Top 81%)9835(Top 78%)9835(Top 172%)
FINISH26.22 mi1.02 mi23664+859632+289632+2821883(Top 75%)9006(Top 72%)9006(Top 158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
Γ—21
+97ft-345ft

Overall

24207

Females

9763

F18-39

9763

5K→10K

3.1 - 6.2 mi

Top 85%
Γ—5
+79ft-138ft

Overall

24654

Females

10003

F18-39

10003

10K→15K

6.2 - 9.3 mi

Top 83%
Γ—3
+67ft-78ft

Overall

24207

Females

9763

F18-39

9763

15K→20K

9.3 - 12.4 mi

Top 82%
Γ—5
+106ft-86ft

Overall

23766

Females

9576

F18-39

9576

20K→HALF

12.4 - 13.1 mi

Top 82%
Γ—2
+19ft-37ft

Overall

23938

Females

9658

F18-39

9658

HALF→25K

13.1 - 15.5 mi

Top 81%
Γ—4
+66ft-88ft

Overall

23505

Females

9474

F18-39

9474

25K→30K

15.5 - 18.6 mi

Top 81%
Γ—9
+181ft-148ft

Overall

23528

Females

9580

F18-39

9580

30K→20M

18.6 - 20.0 mi

Top 81%
Γ—5
+64ft-50ft

Overall

23410

Females

9596

F18-39

9596

20M→21M

20.0 - 21.0 mi

Top 78%
Γ—8
+106ft-24ft

Overall

22593

Females

9198

F18-39

9198

21M→35K

21.0 - 21.8 mi

Top 81%
Γ—7
+17ft-86ft

Overall

23572

Females

9748

F18-39

9748

35K→23M

21.8 - 23.0 mi

Top 81%
Γ—5
+23ft-63ft

Overall

23632

Females

9852

F18-39

9852

23M→24M

23.0 - 24.0 mi

Top 77%
Γ—6
+12ft-82ft

Overall

22308

Females

9189

F18-39

9189

24M→40K

24.0 - 24.9 mi

Top 78%
Γ—1
+6ft-20ft

Overall

22710

Females

9463

F18-39

9463

40K→25.2M

24.9 - 25.2 mi

Top 81%
Γ—1
+13ft-16ft

Overall

23419

Females

9835

F18-39

9835

25.2M→FINISH

25.2 - 26.2 mi

Top 75%
Γ—2
+22ft-21ft

Overall

21883

Females

9006

F18-39

9006

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2000*
Passed By
475
Net Change
+1525
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#25189
5K β†’ 10K389*103+286#25189#24903
10K β†’ 15K276*33+243#24903#24660
15K β†’ 20K247*43+204#24660#24456
20K β†’ HALF4510+35#24456#24421
HALF β†’ 25K18232+150#24421#24271
25K β†’ 30K236*49+187#24271#24084
30K β†’ 20M10133+68#24084#24016
20M β†’ 21M12220+102#24016#23914
21M β†’ 35K4834+14#23914#23900
35K β†’ 23M8456+28#23900#23872
23M β†’ 24M837+76#23872#23796
24M β†’ 40K5817+41#23796#23755
40K β†’ 25.2M2418+6#23755#23749
25.2M β†’ FINISH10520+85#23749#23664
TOTALS2000*475+1525

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

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