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BOSTON MARATHON 2025

Sydney Kornegay

Bib: 18028•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 29%
Gender (Female)
#0 / 12228
Top 11%
Division (F18-39)
#0 / 5469
Top 21%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:44/mi
20:56
↑ 97↓ 3451.5%
10K· 6.21 mi
7:06/mi
42:58
↑ 79↓ 1380.4%
15K· 9.32 mi
7:09/mi
1:05:11
↑ 67↓ 78
20K· 12.43 mi
7:11/mi
1:27:31
↑ 106↓ 860.1%
Half· 13.11 mi
7:05/mi
1:32:21
↑ 19↓ 370.5%
25K· 15.53 mi
7:20/mi
1:50:07
↑ 66↓ 880.2%
30K· 18.64 mi
7:36/mi
2:13:43
↑ 181↓ 1480.2%
20M
7:44/mi
2:24:13
↑ 64↓ 500.2%
21M
8:10/mi
2:32:23
↑ 106↓ 241.6%
35K· 21.75 mi
7:33/mi
2:38:02
↑ 17↓ 861.7%
23M
7:53/mi
2:47:54
↑ 23↓ 630.6%
24M
7:46/mi
2:55:40
↓ 821.3%
40K· 24.85 mi
7:58/mi
3:02:29
↓ 200.3%
25.2M
8:51/mi
3:05:32
↑ 13↓ 160.2%
Finish· 26.22 mi
8:00/mi
3:13:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:21
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:41:20
Pace7:44 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:11:0620:566:4420:56
6:44
-
10K
6.21 mi11:33:0842:586:5522:02
7:06
+0:22
15K
9.32 mi11:55:211:05:117:0022:13
7:09
+0:03
20K
12.43 mi12:17:411:27:317:0322:20
7:11
+0:02
Half
13.11 mi12:22:311:32:217:034:50
7:05
-0:06
25K
15.53 mi12:40:171:50:077:0517:46
7:20
+0:15
30K
18.64 mi13:03:532:13:437:1023:36
7:36
+0:16
20M
20.00 mi13:14:232:24:137:1310:30
7:44
+0:08
21M
21.00 mi13:22:332:32:237:158:10
8:10
+0:26
35K
21.75 mi13:28:122:38:027:165:39
7:33
-0:37
23M
23.00 mi13:38:042:47:547:189:52
7:53
+0:20
24M
24.00 mi13:45:502:55:407:197:46
7:46
-0:07
40K
24.85 mi13:52:393:02:297:216:49
7:58
+0:12
25.2M
25.20 mi13:55:423:05:327:223:03
8:51
+0:53
Finish
26.22 mi14:03:513:13:417:248:09
8:00
-0:51

Checkpoints & Pacing

📈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

6:44 /mi

Average Pace

7:24 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:07

57% of race

Time at Steady Pace

47:31

25% of race

Time at Slower Pace

36:03

19% of race

Average Pace: 7:23 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:11:0620:566:4420:56
6:44
#5809
10K
6.21 mi11:33:0842:586:5522:02
7:06
#7269
15K
9.32 mi11:55:211:05:117:0022:13
7:09
#7719
20K
12.43 mi12:17:411:27:317:0322:20
7:11
#7781
Half
13.11 mi12:22:311:32:217:034:50
7:05
#7793
25K
15.53 mi12:40:171:50:077:0517:46
7:20
#7851
30K
18.64 mi13:03:532:13:437:1023:36
7:36
#7856
20M
20.00 mi13:14:232:24:137:1310:30
7:44
#7833
21M
21.00 mi13:22:332:32:237:158:10
8:10
#7800
35K
21.75 mi13:28:122:38:027:165:39
7:33
#7804
23M
23.00 mi13:38:042:47:547:189:52
7:53
#7815
24M
24.00 mi13:45:502:55:407:197:46
7:46
#7881
40K
24.85 mi13:52:393:02:297:216:49
7:58
#7919
25.2M
25.20 mi13:55:423:05:327:223:03
8:51
#7953
Finish
26.22 mi14:03:513:13:417:248:09
8:00
#8121
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi58094434438723(Top 31%)1314(Top 11%)1314(Top 24%)
10K6.21 mi3.10 mi7269-1460765-322765-3228630(Top 30%)1232(Top 10%)1232(Top 23%)
15K9.32 mi3.11 mi7719-450907-142907-1428723(Top 31%)1314(Top 11%)1314(Top 24%)
20K12.43 mi3.11 mi7781-62945-38945-388119(Top 29%)1154(Top 9%)1154(Top 21%)
Half13.11 mi0.68 mi7793-12952-7952-78249(Top 29%)1187(Top 10%)1187(Top 22%)
25K15.53 mi2.42 mi7851-58993-41993-418592(Top 30%)1463(Top 12%)1463(Top 27%)
30K18.64 mi3.11 mi7856-51047-541047-548428(Top 30%)1567(Top 13%)1567(Top 29%)
20M20.00 mi1.36 mi7833+231079-321079-328558(Top 30%)1768(Top 14%)1768(Top 32%)
21M21.00 mi1.00 mi7800+331094-151094-158394(Top 30%)1890(Top 15%)1890(Top 35%)
35K21.75 mi0.75 mi7804-41126-321126-329027(Top 32%)2121(Top 17%)2121(Top 39%)
23M23.00 mi1.25 mi7815-111175-491175-499159(Top 32%)2320(Top 19%)2320(Top 42%)
24M24.00 mi1.00 mi7881-661236-611236-619580(Top 34%)2586(Top 21%)2586(Top 47%)
40K24.85 mi0.85 mi7919-381279-431279-4310010(Top 35%)2922(Top 24%)2922(Top 53%)
25.2M25.20 mi0.35 mi7953-341305-261305-2610933(Top 38%)3427(Top 28%)3427(Top 63%)
Finish26.22 mi1.02 mi8121-1681402-971402-9712870(Top 45%)4353(Top 36%)4353(Top 80%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8723

Females

1314

F18-39

1314

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

8630

Females

1232

F18-39

1232

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8723

Females

1314

F18-39

1314

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

8119

Females

1154

F18-39

1154

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

8249

Females

1187

F18-39

1187

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

8592

Females

1463

F18-39

1463

25K→30K

15.5 - 18.6 mi

Top 30%
×9story building
+181ft-148ft

Overall

8428

Females

1567

F18-39

1567

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

8558

Females

1768

F18-39

1768

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8394

Females

1890

F18-39

1890

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

9027

Females

2121

F18-39

2121

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

9159

Females

2320

F18-39

2320

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9580

Females

2586

F18-39

2586

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

10010

Females

2922

F18-39

2922

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10933

Females

3427

F18-39

3427

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12870

Females

4353

F18-39

4353

Passing Analysis

Category:
Athletes Passed
1016
Passed By
3328
Net Change
-2312
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5809
5K → 10K151475-1460#5809#7269
10K → 15K38488-450#7269#7719
15K → 20K113175-62#7719#7781
20K → Half2234-12#7781#7793
Half → 25K93151-58#7793#7851
25K → 30K192197-5#7851#7856
30K → 20M10380+23#7856#7833
20M → 21M11380+33#7833#7800
21M → 35K6165-4#7800#7804
35K → 23M101112-11#7804#7815
23M → 24M48114-66#7815#7881
24M → 40K62100-38#7881#7919
40K → 25.2M2155-34#7919#7953
25.2M → Finish34202-168#7953#8121
TOTALS10163328-2312
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing