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BOSTON MARATHON 2026

Karen Lukic

Bib: 21343•F

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 45%
Masters (Masters Women)
#0 / 6862
Top 31%
Age Group (F45-49)
#0 / 1786
Top 37%
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
25:52
3.11 mi
Rank: #19031
Start → 5K
25:52 | 8:20/mi
10K
51:39
6.21 mi
Rank: #19095 (-64)
5K → 10K
25:47 | 8:18/mi
15K
1:17:02
9.32 mi
Rank: #18791 (+304)
10K → 15K
25:23 | 8:11/mi
20K
1:42:12
12.43 mi
Rank: #18309 (+482)
15K → 20K
25:10 | 8:07/mi
HALF
1:47:40
13.11 mi
Rank: #18252 (+57)
20K → HALF
5:28 | 8:02/mi
25K
2:08:13
15.53 mi
Rank: #18274 (-22)
HALF → 25K
20:33 | 8:29/mi
30K
2:33:58
18.64 mi
Rank: #17765 (+509)
25K → 30K
25:45 | 8:18/mi
20M
2:45:12
20.00 mi
Rank: #17527 (+238)
30K → 20M
11:14 | 8:17/mi
21M
2:53:43
21.00 mi
Rank: #17284 (+243)
20M → 21M
8:31 | 8:31/mi
35K
2:59:42
21.75 mi
Rank: #17158 (+126)
21M → 35K
5:59 | 8:00/mi
23M
3:09:52
23.00 mi
Rank: #16920 (+238)
35K → 23M
10:10 | 8:08/mi
24M
3:17:39
24.00 mi
Rank: #16709 (+211)
23M → 24M
7:47 | 7:47/mi
40K
3:24:24
24.85 mi
Rank: #16496 (+213)
24M → 40K
6:45 | 7:54/mi
25.2M
3:27:15
25.20 mi
Rank: #16387 (+109)
40K → 25.2M
2:51 | 8:16/mi
FINISH
3:34:34
26.22 mi
Rank: #16115 (+272)
25.2M → FINISH
7:19 | 7:11/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:47:40
Pace8:13 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:46:54
Pace8:10 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:0925:528:2025:52
8:20
-
10K
6.21 mi11:52:5651:398:1925:47
8:18
-0:02
15K
9.32 mi12:18:191:17:028:1625:23
8:11
-0:07
20K
12.43 mi12:43:291:42:128:1425:10
8:07
-0:04
HALF
13.11 mi12:48:571:47:408:135:28
8:02
-0:05
25K
15.53 mi13:09:302:08:138:1620:33
8:29
+0:27
30K
18.64 mi13:35:152:33:588:1625:45
8:18
-0:11
20M
20.00 mi13:46:292:45:128:1611:14
8:17
-0:01
21M
21.00 mi13:55:002:53:438:178:31
8:31
+0:14
35K
21.75 mi14:00:592:59:428:165:59
8:00
-0:31
23M
23.00 mi14:11:093:09:528:1610:10
8:08
+0:08
24M
24.00 mi14:18:563:17:398:157:47
7:47
-0:21
40K
24.85 mi14:25:413:24:248:146:45
7:54
+0:07
25.2M
25.20 mi14:28:323:27:158:142:51
8:16
+0:22
FINISH
26.22 mi14:35:513:34:348:127:19
7:11
-1:05

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

7:11 /mi

Average Pace

8:11 /mi

Slowest Pace

8:31 /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

21:51

10% of race

Time at Steady Pace

2:43:39

76% of race

Time at Slower Pace

29:04

14% of race

Average Pace: 8:11 /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 mi11:27:0925:528:2025:52
8:20
#19031
10K
6.21 mi11:52:5651:398:1925:47
8:18
#19095
15K
9.32 mi12:18:191:17:028:1625:23
8:11
#18791
20K
12.43 mi12:43:291:42:128:1425:10
8:07
#18309
HALF
13.11 mi12:48:571:47:408:135:28
8:02
#18252
25K
15.53 mi13:09:302:08:138:1620:33
8:29
#18274
30K
18.64 mi13:35:152:33:588:1625:45
8:18
#17765
20M
20.00 mi13:46:292:45:128:1611:14
8:17
#17527
21M
21.00 mi13:55:002:53:438:178:31
8:31
#17284
35K
21.75 mi14:00:592:59:428:165:59
8:00
#17158
23M
23.00 mi14:11:093:09:528:1610:10
8:08
#16920
24M
24.00 mi14:18:563:17:398:157:47
7:47
#16709
40K
24.85 mi14:25:413:24:248:146:45
7:54
#16496
25.2M
25.20 mi14:28:323:27:158:142:51
8:16
#16387
FINISH
26.22 mi14:35:513:34:348:127:19
7:11
#16115
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi190317099709918148(Top 63%)6554(Top 52%)6554(Top 367%)
10K6.21 mi3.10 mi19095-647120-217120-2119165(Top 66%)7107(Top 57%)7107(Top 398%)
15K9.32 mi3.11 mi18791+3046925+1956925+19518148(Top 63%)6554(Top 52%)6554(Top 367%)
20K12.43 mi3.11 mi18309+4826655+2706655+27016862(Top 58%)5856(Top 47%)5856(Top 328%)
HALF13.11 mi0.68 mi18252+576627+286627+2817281(Top 60%)6064(Top 48%)6064(Top 340%)
25K15.53 mi2.42 mi18274-226656-296656-2918423(Top 63%)6795(Top 54%)6795(Top 380%)
30K18.64 mi3.11 mi17765+5096396+2606396+26015548(Top 54%)5275(Top 42%)5275(Top 295%)
20M20.00 mi1.36 mi17527+2386276+1206276+12014767(Top 51%)4919(Top 39%)4919(Top 275%)
21M21.00 mi1.00 mi17284+2436152+1246152+12413269(Top 46%)4210(Top 33%)4210(Top 236%)
35K21.75 mi0.75 mi17158+1266104+486104+4814537(Top 50%)4941(Top 39%)4941(Top 277%)
23M23.00 mi1.25 mi16920+2385995+1095995+10913345(Top 46%)4363(Top 35%)4363(Top 244%)
24M24.00 mi1.00 mi16709+2115889+1065889+10612233(Top 42%)3854(Top 31%)3854(Top 216%)
40K24.85 mi0.85 mi16496+2135796+935796+9311814(Top 41%)3695(Top 29%)3695(Top 207%)
25.2M25.20 mi0.35 mi16387+1095750+465750+4610214(Top 35%)2978(Top 24%)2978(Top 167%)
FINISH26.22 mi1.02 mi16115+2725621+1295621+1299038(Top 31%)2415(Top 19%)2415(Top 135%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21
+97ft-345ft

Overall

18148

Females

6554

F45-49

6554

5K→10K

3.1 - 6.2 mi

Top 66%
×5
+79ft-138ft

Overall

19165

Females

7107

F45-49

7107

10K→15K

6.2 - 9.3 mi

Top 63%
×3
+67ft-78ft

Overall

18148

Females

6554

F45-49

6554

15K→20K

9.3 - 12.4 mi

Top 58%
×5
+106ft-86ft

Overall

16862

Females

5856

F45-49

5856

20K→HALF

12.4 - 13.1 mi

Top 60%
×2
+19ft-37ft

Overall

17281

Females

6064

F45-49

6064

HALF→25K

13.1 - 15.5 mi

Top 63%
×4
+66ft-88ft

Overall

18423

Females

6795

F45-49

6795

25K→30K

15.5 - 18.6 mi

Top 54%
×9
+181ft-148ft

Overall

15548

Females

5275

F45-49

5275

30K→20M

18.6 - 20.0 mi

Top 51%
×5
+64ft-50ft

Overall

14767

Females

4919

F45-49

4919

20M→21M

20.0 - 21.0 mi

Top 46%
×8
+106ft-24ft

Overall

13269

Females

4210

F45-49

4210

21M→35K

21.0 - 21.8 mi

Top 50%
×7
+17ft-86ft

Overall

14537

Females

4941

F45-49

4941

35K→23M

21.8 - 23.0 mi

Top 46%
×5
+23ft-63ft

Overall

13345

Females

4363

F45-49

4363

23M→24M

23.0 - 24.0 mi

Top 42%
×6
+12ft-82ft

Overall

12233

Females

3854

F45-49

3854

24M→40K

24.0 - 24.9 mi

Top 41%
×1
+6ft-20ft

Overall

11814

Females

3695

F45-49

3695

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1
+13ft-16ft

Overall

10214

Females

2978

F45-49

2978

25.2M→FINISH

25.2 - 26.2 mi

Top 31%
×2
+22ft-21ft

Overall

9038

Females

2415

F45-49

2415

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3445*
Passed By
465
Net Change
+2916
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19031
5K → 10K200200-64#19031#19095
10K → 15K369*65+304#19095#18791
15K → 20K493*11+482#18791#18309
20K → HALF647+57#18309#18252
HALF → 25K115137-22#18252#18274
25K → 30K517*8+509#18274#17765
30K → 20M245*7+238#17765#17527
20M → 21M246*3+243#17527#17284
21M → 35K1348+126#17284#17158
35K → 23M247*9+238#17158#16920
23M → 24M215*4+211#16920#16709
24M → 40K216*3+213#16709#16496
40K → 25.2M1101+109#16496#16387
25.2M → FINISH274*2+272#16387#16115
TOTALS3445*465+2916

* 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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing