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BOSTON MARATHON 2025

Stacy Kopchak

PA

Bib: 24681 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Top 41%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:29/mi
26:20
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:25/mi
52:28
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:30/mi
1:18:51
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:39/mi
1:45:42
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:37/mi
1:51:35
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:50/mi
2:13:01
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:30/mi
2:42:31
↑ 181↓ 1480.2%
138 ft elev
20M
10:08/mi
2:56:17
↑ 64↓ 500.2%
148 ft elev
21M
11:01/mi
3:07:18
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
10:39/mi
3:15:16
↑ 17↓ 861.7%
156 ft elev
23M
11:22/mi
3:29:30
↑ 23↓ 630.6%
116 ft elev
24M
11:36/mi
3:41:06
↓ 821.3%
34 ft elev
40K· 24.85 mi
12:41/mi
3:51:57
↓ 200.3%
20 ft elev
25.2M
13:52/mi
3:56:44
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
12:34/mi
4:09:32
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:51:358:31 /mi⚡ faster
2nd Half
2:17:5710:31 /mi+23.6%
Positive split — 23.6% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:2526:208:2926:20
8:29
-
10K
6.21 mi11:53:3352:288:2726:08
8:25
-0:04
15K
9.32 mi12:19:561:18:518:2826:23
8:30
+0:05
20K
12.43 mi12:46:471:45:428:3026:51
8:39
+0:09
Half
13.11 mi12:52:401:51:358:315:53
8:37
-0:02
25K
15.53 mi13:14:062:13:018:3421:26
8:50
+0:13
30K
18.64 mi13:43:362:42:318:4329:30
9:30
+0:40
20M
20.00 mi13:57:222:56:178:4913:46
10:08
+0:38
21M
21.00 mi14:08:233:07:188:5511:01
11:01
+0:53
35K
21.75 mi14:16:213:15:168:597:58
10:39
-0:22
23M
23.00 mi14:30:353:29:309:0714:14
11:22
+0:43
24M
24.00 mi14:42:113:41:069:1311:36
11:36
+0:14
40K
24.85 mi14:53:023:51:579:2010:51
12:41
+1:05
25.2M
25.20 mi14:57:493:56:449:244:47
13:52
+1:11
Finish
26.22 mi15:10:374:09:329:3112:48
12:34
-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

8:25 /mi

Average Pace

9:31 /mi

Slowest Pace

13:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:13:01

53% of race

Time at Steady Pace

51:14

21% of race

Time at Slower Pace

1:05:17

26% of race

Average Pace: 9:31 /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 mi11:27:2526:208:2926:20
8:29
#19772
10K
6.21 mi11:53:3352:288:2726:08
8:25
#19502
15K
9.32 mi12:19:561:18:518:2826:23
8:30
#19425
20K
12.43 mi12:46:471:45:428:3026:51
8:39
#19307
Half
13.11 mi12:52:401:51:358:315:53
8:37
#19335
25K
15.53 mi13:14:062:13:018:3421:26
8:50
#19277
30K
18.64 mi13:43:362:42:318:4329:30
9:30
#19421
20M
20.00 mi13:57:222:56:178:4913:46
10:08
#19641
21M
21.00 mi14:08:233:07:188:5511:01
11:01
#19804
35K
21.75 mi14:16:213:15:168:597:58
10:39
#20010
23M
23.00 mi14:30:353:29:309:0714:14
11:22
#20418
24M
24.00 mi14:42:113:41:069:1311:36
11:36
#20785
40K
24.85 mi14:53:023:51:579:2010:51
12:41
#21128
25.2M
25.20 mi14:57:493:56:449:244:47
13:52
#21257
Finish
26.22 mi15:10:374:09:329:3112:48
12:34
#21675
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi19772737773771929170627062
10K6.21 mi3.10 mi19502+2707186+1917186+1911928070477047
15K9.32 mi3.11 mi19425+777139+477139+471929170627062
20K12.43 mi3.11 mi19307+1187086+537086+531911069796979
Half13.11 mi0.68 mi19335-287102-167102-162000674947494
25K15.53 mi2.42 mi19277+587075+277075+271917570707070
30K18.64 mi3.11 mi19421-1447197-1227197-1221993776317631
20M20.00 mi1.36 mi19641-2207344-1477344-1472139285708570
21M21.00 mi1.00 mi19804-1637462-1187462-1182146086878687
35K21.75 mi0.75 mi20010-2067600-1387600-1382348597949794
23M23.00 mi1.25 mi20418-4087844-2447844-244240291011310113
24M24.00 mi1.00 mi20785-3678059-2158059-215250731066510665
40K24.85 mi0.85 mi21128-3438271-2128271-212259331111311113
25.2M25.20 mi0.35 mi21257-1298350-798350-79261571125311253
Finish26.22 mi1.02 mi21675-4188606-2568606-256273381178811788

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19291

Females

7062

F60-64

7062

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

19280

Females

7047

F60-64

7047

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19291

Females

7062

F60-64

7062

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

19110

Females

6979

F60-64

6979

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

20006

Females

7494

F60-64

7494

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19175

Females

7070

F60-64

7070

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19937

Females

7631

F60-64

7631

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

21392

Females

8570

F60-64

8570

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

21460

Females

8687

F60-64

8687

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23485

Females

9794

F60-64

9794

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

24029

Females

10113

F60-64

10113

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

25073

Females

10665

F60-64

10665

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25933

Females

11113

F60-64

11113

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

26157

Females

11253

F60-64

11253

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2story building
+22ft-21ft

Overall

27338

Females

11788

F60-64

11788

Passing Analysis

Category:
Athletes Passed
1459
Passed By
3362
Net Change
-1903
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19772
5K → 10K412142+270#19772#19502
10K → 15K240163+77#19502#19425
15K → 20K246128+118#19425#19307
20K → Half2654-28#19307#19335
Half → 25K198140+58#19335#19277
25K → 30K174318-144#19277#19421
30K → 20M46266-220#19421#19641
20M → 21M56219-163#19641#19804
21M → 35K20226-206#19804#20010
35K → 23M20428-408#20010#20418
23M → 24M7374-367#20418#20785
24M → 40K4347-343#20785#21128
40K → 25.2M4133-129#21128#21257
25.2M → Finish6424-418#21257#21675
TOTALS14593362-1903

Passing Charts

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