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BOSTON MARATHON 2025

Sara Corey

Bib: 27179•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
9:49/mi
30:29
↑ 97↓ 3451.5%
10K· 6.21 mi
9:31/mi
1:00:03
↑ 79↓ 1380.4%
15K· 9.32 mi
9:07/mi
1:28:22
↑ 67↓ 78
20K· 12.43 mi
8:58/mi
1:56:14
↑ 106↓ 860.1%
Half· 13.11 mi
8:49/mi
2:02:15
↑ 19↓ 370.5%
25K· 15.53 mi
9:03/mi
2:24:11
↑ 66↓ 880.2%
30K· 18.64 mi
9:19/mi
2:53:08
↑ 181↓ 1480.2%
20M
9:12/mi
3:05:38
↑ 64↓ 500.2%
21M
9:20/mi
3:14:58
↑ 106↓ 241.6%
35K· 21.75 mi
8:29/mi
3:21:19
↑ 17↓ 861.7%
23M
8:50/mi
3:32:22
↑ 23↓ 630.6%
24M
8:28/mi
3:40:50
↓ 821.3%
40K· 24.85 mi
8:05/mi
3:47:45
↓ 200.3%
25.2M
8:54/mi
3:50:49
↑ 13↓ 160.2%
Finish· 26.22 mi
7:36/mi
3:58:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:02:15
Pace9:20 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:56:19
Pace8:52 /mi
📊Negative Split: 4.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:2730:299:4930:29
9:49
-
10K
6.21 mi12:23:011:00:039:4029:34
9:31
-0:18
15K
9.32 mi12:51:201:28:229:2928:19
9:07
-0:24
20K
12.43 mi13:19:121:56:149:2127:52
8:58
-0:09
Half
13.11 mi13:25:132:02:159:206:01
8:49
-0:09
25K
15.53 mi13:47:092:24:119:1721:56
9:03
+0:14
30K
18.64 mi14:16:062:53:089:1728:57
9:19
+0:16
20M
20.00 mi14:28:363:05:389:1712:30
9:12
-0:07
21M
21.00 mi14:37:563:14:589:179:20
9:20
+0:08
35K
21.75 mi14:44:173:21:199:156:21
8:29
-0:51
23M
23.00 mi14:55:203:32:229:1411:03
8:50
+0:21
24M
24.00 mi15:03:483:40:509:128:28
8:28
-0:22
40K
24.85 mi15:10:433:47:459:106:55
8:05
-0:23
25.2M
25.20 mi15:13:473:50:499:103:04
8:54
+0:49
Finish
26.22 mi15:21:323:58:349:067:45
7:36
-1:18

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

7:36 /mi

Average Pace

9:06 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

29:29

12% of race

Time at Steady Pace

1:50:45

46% of race

Time at Slower Pace

1:38:20

41% of race

Average Pace: 9:06 /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 mi11:53:2730:299:4930:29
9:49
#25120
10K
6.21 mi12:23:011:00:039:4029:34
9:31
#24646
15K
9.32 mi12:51:201:28:229:2928:19
9:07
#23981
20K
12.43 mi13:19:121:56:149:2127:52
8:58
#23294
Half
13.11 mi13:25:132:02:159:206:01
8:49
#23196
25K
15.53 mi13:47:092:24:119:1721:56
9:03
#22726
30K
18.64 mi14:16:062:53:089:1728:57
9:19
#22120
20M
20.00 mi14:28:363:05:389:1712:30
9:12
#21799
21M
21.00 mi14:37:563:14:589:179:20
9:20
#21467
35K
21.75 mi14:44:173:21:199:156:21
8:29
#21281
23M
23.00 mi14:55:203:32:229:1411:03
8:50
#20965
24M
24.00 mi15:03:483:40:509:128:28
8:28
#20739
40K
24.85 mi15:10:433:47:459:106:55
8:05
#20468
25.2M
25.20 mi15:13:473:50:499:103:04
8:54
#20360
Finish
26.22 mi15:21:323:58:349:067:45
7:36
#20070
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25120102711027122522(Top 79%)8843(Top 72%)8843(Top 162%)
10K6.21 mi3.10 mi24646+47410032+23910032+23924159(Top 85%)9775(Top 80%)9775(Top 179%)
15K9.32 mi3.11 mi23981+6659664+3689664+36822522(Top 79%)8843(Top 72%)8843(Top 162%)
20K12.43 mi3.11 mi23294+6879283+3819283+38120816(Top 73%)7957(Top 65%)7957(Top 145%)
Half13.11 mi0.68 mi23196+989226+579226+5721017(Top 74%)8050(Top 66%)8050(Top 147%)
25K15.53 mi2.42 mi22726+4708990+2368990+23620119(Top 71%)7600(Top 62%)7600(Top 139%)
30K18.64 mi3.11 mi22120+6068690+3008690+30019204(Top 68%)7232(Top 59%)7232(Top 132%)
20M20.00 mi1.36 mi21799+3218526+1648526+16417803(Top 63%)6601(Top 54%)6601(Top 121%)
21M21.00 mi1.00 mi21467+3328372+1548372+15415356(Top 54%)5386(Top 44%)5386(Top 98%)
35K21.75 mi0.75 mi21281+1868281+918281+9115466(Top 54%)5522(Top 45%)5522(Top 101%)
23M23.00 mi1.25 mi20965+3168140+1418140+14115287(Top 54%)5497(Top 45%)5497(Top 101%)
24M24.00 mi1.00 mi20739+2268034+1068034+10614348(Top 51%)5017(Top 41%)5017(Top 92%)
40K24.85 mi0.85 mi20468+2717903+1317903+13110851(Top 38%)3360(Top 27%)3360(Top 61%)
25.2M25.20 mi0.35 mi20360+1087853+507853+5011334(Top 40%)3708(Top 30%)3708(Top 68%)
Finish26.22 mi1.02 mi20070+2907717+1367717+13610050(Top 35%)3032(Top 25%)3032(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22522

Females

8843

F18-39

8843

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

24159

Females

9775

F18-39

9775

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22522

Females

8843

F18-39

8843

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

20816

Females

7957

F18-39

7957

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

21017

Females

8050

F18-39

8050

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20119

Females

7600

F18-39

7600

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

19204

Females

7232

F18-39

7232

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

17803

Females

6601

F18-39

6601

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

15356

Females

5386

F18-39

5386

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

15466

Females

5522

F18-39

5522

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

15287

Females

5497

F18-39

5497

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

14348

Females

5017

F18-39

5017

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10851

Females

3360

F18-39

3360

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11334

Females

3708

F18-39

3708

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

10050

Females

3032

F18-39

3032

Passing Analysis

Category:
Athletes Passed
5132
Passed By
82
Net Change
+5050
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25120
5K → 10K52854+474#25120#24646
10K → 15K6727+665#24646#23981
15K → 20K6892+687#23981#23294
20K → Half1013+98#23294#23196
Half → 25K4744+470#23196#22726
25K → 30K6104+606#22726#22120
30K → 20M3221+321#22120#21799
20M → 21M3320+332#21799#21467
21M → 35K1860+186#21467#21281
35K → 23M3182+316#21281#20965
23M → 24M2293+226#20965#20739
24M → 40K2710+271#20739#20468
40K → 25.2M1091+108#20468#20360
25.2M → Finish2911+290#20360#20070
TOTALS513282+5050
📊

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