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BOSTON MARATHON 2026

Sophia Karperos

Bib: 14835•F

CA

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 29%
Gender (Female)
#0 / 12578
Top 12%
Age Group (F18-39)
#0 / 5716
Top 22%
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
21:51
3.11 mi
Rank: #8813
Start → 5K
21:51 | 7:02/mi
10K
43:30
6.21 mi
Rank: #8605 (+208)
5K → 10K
21:39 | 6:59/mi
15K
1:05:10
9.32 mi
Rank: #8524 (+81)
10K → 15K
21:40 | 6:59/mi
20K
1:26:51
12.43 mi
Rank: #8290 (+234)
15K → 20K
21:41 | 6:59/mi
HALF
1:31:34
13.11 mi
Rank: #8272 (+18)
20K → HALF
4:43 | 6:56/mi
25K
1:48:34
15.53 mi
Rank: #8087 (+185)
HALF → 25K
17:00 | 7:01/mi
30K
2:11:29
18.64 mi
Rank: #8109 (-22)
25K → 30K
22:55 | 7:23/mi
20M
2:22:08
20.00 mi
Rank: #8274 (-165)
30K → 20M
10:39 | 7:51/mi
21M
2:30:10
21.00 mi
Rank: #8326 (-52)
20M → 21M
8:02 | 8:02/mi
35K
2:35:41
21.75 mi
Rank: #8354 (-28)
21M → 35K
5:31 | 7:23/mi
23M
2:45:11
23.00 mi
Rank: #8366 (-12)
35K → 23M
9:30 | 7:36/mi
24M
2:52:35
24.00 mi
Rank: #8377 (-11)
23M → 24M
7:24 | 7:24/mi
40K
2:59:01
24.85 mi
Rank: #8380 (-3)
24M → 40K
6:26 | 7:32/mi
25.2M
3:01:48
25.20 mi
Rank: #8370 (+10)
40K → 25.2M
2:47 | 8:05/mi
FINISH
3:09:04
26.22 mi
Rank: #8335 (+35)
25.2M → FINISH
7:16 | 7:08/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:31:34
Pace7:00 /mi
2nd Half
Distance13.11 mi
Time1:37:30
Pace7:27 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3421:517:0221:51
7:02
-
10K
6.21 mi11:14:1343:307:0121:39
6:59
-0:03
15K
9.32 mi11:35:531:05:107:0021:40
6:59
0:00
20K
12.43 mi11:57:341:26:517:0021:41
6:59
0:00
HALF
13.11 mi12:02:171:31:347:004:43
6:56
-0:03
25K
15.53 mi12:19:171:48:347:0017:00
7:01
+0:05
30K
18.64 mi12:42:122:11:297:0422:55
7:23
+0:22
20M
20.00 mi12:52:512:22:087:0710:39
7:51
+0:28
21M
21.00 mi13:00:532:30:107:108:02
8:02
+0:11
35K
21.75 mi13:06:242:35:417:105:31
7:23
-0:39
23M
23.00 mi13:15:542:45:117:119:30
7:36
+0:13
24M
24.00 mi13:23:182:52:357:127:24
7:24
-0:12
40K
24.85 mi13:29:442:59:017:136:26
7:32
+0:08
25.2M
25.20 mi13:32:313:01:487:132:47
8:05
+0:33
FINISH
26.22 mi13:39:473:09:047:137:16
7:08
-0:57

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

6:56 /mi

Average Pace

7:13 /mi

Slowest Pace

8:05 /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

2:47:36

89% of race

Time at Steady Pace

21:28

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:13 /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 mi10:52:3421:517:0221:51
7:02
#8813
10K
6.21 mi11:14:1343:307:0121:39
6:59
#8605
15K
9.32 mi11:35:531:05:107:0021:40
6:59
#8524
20K
12.43 mi11:57:341:26:517:0021:41
6:59
#8290
HALF
13.11 mi12:02:171:31:347:004:43
6:56
#8272
25K
15.53 mi12:19:171:48:347:0017:00
7:01
#8087
30K
18.64 mi12:42:122:11:297:0422:55
7:23
#8109
20M
20.00 mi12:52:512:22:087:0710:39
7:51
#8274
21M
21.00 mi13:00:532:30:107:108:02
8:02
#8326
35K
21.75 mi13:06:242:35:417:105:31
7:23
#8354
23M
23.00 mi13:15:542:45:117:119:30
7:36
#8366
24M
24.00 mi13:23:182:52:357:127:24
7:24
#8377
40K
24.85 mi13:29:442:59:017:136:26
7:32
#8380
25.2M
25.20 mi13:32:313:01:487:132:47
8:05
#8370
FINISH
26.22 mi13:39:473:09:047:137:16
7:08
#8335
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 mi8813134313438424(Top 29%)1273(Top 10%)1273(Top 22%)
10K6.21 mi3.10 mi8605+2081311+321311+328466(Top 29%)1261(Top 10%)1261(Top 22%)
15K9.32 mi3.11 mi8524+811283+281283+288424(Top 29%)1273(Top 10%)1273(Top 22%)
20K12.43 mi3.11 mi8290+2341214+691214+697726(Top 27%)1045(Top 8%)1045(Top 18%)
HALF13.11 mi0.68 mi8272+181205+91205+98149(Top 28%)1186(Top 9%)1186(Top 21%)
25K15.53 mi2.42 mi8087+1851142+631142+637491(Top 26%)1030(Top 8%)1030(Top 18%)
30K18.64 mi3.11 mi8109-221200-581200-588704(Top 30%)1668(Top 13%)1668(Top 29%)
20M20.00 mi1.36 mi8274-1651284-841284-8411650(Top 40%)3218(Top 26%)3218(Top 56%)
21M21.00 mi1.00 mi8326-521327-431327-4310122(Top 35%)2543(Top 20%)2543(Top 44%)
35K21.75 mi0.75 mi8354-281358-311358-319909(Top 34%)2432(Top 19%)2432(Top 43%)
23M23.00 mi1.25 mi8366-121396-381396-389528(Top 33%)2339(Top 19%)2339(Top 41%)
24M24.00 mi1.00 mi8377-111430-341430-349369(Top 32%)2342(Top 19%)2342(Top 41%)
40K24.85 mi0.85 mi8380-31461-311461-319040(Top 31%)2284(Top 18%)2284(Top 40%)
25.2M25.20 mi0.35 mi8370+101470-91470-98837(Top 30%)2261(Top 18%)2261(Top 40%)
FINISH26.22 mi1.02 mi8335+351480-101480-108590(Top 30%)2186(Top 17%)2186(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21
+97ft-345ft

Overall

8424

Females

1273

F18-39

1273

5K→10K

3.1 - 6.2 mi

Top 29%
×5
+79ft-138ft

Overall

8466

Females

1261

F18-39

1261

10K→15K

6.2 - 9.3 mi

Top 29%
×3
+67ft-78ft

Overall

8424

Females

1273

F18-39

1273

15K→20K

9.3 - 12.4 mi

Top 27%
×5
+106ft-86ft

Overall

7726

Females

1045

F18-39

1045

20K→HALF

12.4 - 13.1 mi

Top 28%
×2
+19ft-37ft

Overall

8149

Females

1186

F18-39

1186

HALF→25K

13.1 - 15.5 mi

Top 26%
×4
+66ft-88ft

Overall

7491

Females

1030

F18-39

1030

25K→30K

15.5 - 18.6 mi

Top 30%
×9
+181ft-148ft

Overall

8704

Females

1668

F18-39

1668

30K→20M

18.6 - 20.0 mi

Top 40%
×5
+64ft-50ft

Overall

11650

Females

3218

F18-39

3218

20M→21M

20.0 - 21.0 mi

Top 35%
×8
+106ft-24ft

Overall

10122

Females

2543

F18-39

2543

21M→35K

21.0 - 21.8 mi

Top 34%
×7
+17ft-86ft

Overall

9909

Females

2432

F18-39

2432

35K→23M

21.8 - 23.0 mi

Top 33%
×5
+23ft-63ft

Overall

9528

Females

2339

F18-39

2339

23M→24M

23.0 - 24.0 mi

Top 32%
×6
+12ft-82ft

Overall

9369

Females

2342

F18-39

2342

24M→40K

24.0 - 24.9 mi

Top 31%
×1
+6ft-20ft

Overall

9040

Females

2284

F18-39

2284

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1
+13ft-16ft

Overall

8837

Females

2261

F18-39

2261

25.2M→FINISH

25.2 - 26.2 mi

Top 30%
×2
+22ft-21ft

Overall

8590

Females

2186

F18-39

2186

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1650*
Passed By
1170
Net Change
+478
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8813
5K → 10K343*135+208#8813#8605
10K → 15K16988+81#8605#8524
15K → 20K264*30+234#8524#8290
20K → HALF3113+18#8290#8272
HALF → 25K208*23+185#8272#8087
25K → 30K158180-22#8087#8109
30K → 20M37200-165#8109#8274
20M → 21M56108-52#8274#8326
21M → 35K4674-28#8326#8354
35K → 23M8193-12#8354#8366
23M → 24M7485-11#8366#8377
24M → 40K6871-3#8377#8380
40K → 25.2M3121+10#8380#8370
25.2M → FINISH8449+35#8370#8335
TOTALS1650*1170+478

* 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

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing