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BOSTON MARATHON 2025

Melissa Stockwell

CO

Bib: P143 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
8:21/mi
25:56
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:11/mi
51:23
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:30/mi
1:17:48
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:56/mi
1:45:32
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:45/mi
1:51:30
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:11/mi
2:13:47
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
11:00/mi
2:47:57
↑ 181↓ 1480.2%
138 ft elev
20M
12:11/mi
3:04:30
↑ 64↓ 500.2%
148 ft elev
21M
15:14/mi
3:19:44
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
12:07/mi
3:28:48
↑ 17↓ 861.7%
156 ft elev
23M
13:46/mi
3:46:02
↑ 23↓ 630.6%
116 ft elev
24M
12:00/mi
3:58:02
↓ 821.3%
34 ft elev
40K· 24.85 mi
12:40/mi
4:08:52
↓ 200.3%
20 ft elev
25.2M
14:24/mi
4:13:50
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
13:29/mi
4:27:34
↑ 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
1:51:308:30 /mi⚡ faster
2nd Half
2:36:0411:54 /mi+40.0%
Positive split — 40.0% 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 mi10:15:5825:568:2125:56
8:21
-
10K
6.21 mi10:41:2551:238:1625:27
8:11
-0:10
15K
9.32 mi11:07:501:17:488:2126:25
8:30
+0:19
20K
12.43 mi11:35:341:45:328:3027:44
8:56
+0:26
Half
13.11 mi11:41:321:51:308:305:58
8:45
-0:11
25K
15.53 mi12:03:492:13:478:3722:17
9:11
+0:26
30K
18.64 mi12:37:592:47:579:0134:10
11:00
+1:49
20M
20.00 mi12:54:323:04:309:1316:33
12:11
+1:11
21M
21.00 mi13:09:463:19:449:3115:14
15:14
+3:03
35K
21.75 mi13:18:503:28:489:369:04
12:07
-3:07
23M
23.00 mi13:36:043:46:029:5017:14
13:46
+1:39
24M
24.00 mi13:48:043:58:029:5512:00
12:00
-1:46
40K
24.85 mi13:58:544:08:5210:0110:50
12:40
+0:40
25.2M
25.20 mi14:03:524:13:5010:044:58
14:24
+1:44
Finish
26.22 mi14:17:364:27:3410:1313:44
13:29
-0:55

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

8:11 /mi

Average Pace

10:13 /mi

Slowest Pace

15:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:13:47

50% of race

Time at Steady Pace

1:22:37

31% of race

Time at Slower Pace

51:10

19% of race

Average Pace: 10:12 /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 mi10:15:5825:568:2125:56
8:21
#19018
10K
6.21 mi10:41:2551:238:1625:27
8:11
#18437
15K
9.32 mi11:07:501:17:488:2126:25
8:30
#18715
20K
12.43 mi11:35:341:45:328:3027:44
8:56
#19217
Half
13.11 mi11:41:321:51:308:305:58
8:45
#19299
25K
15.53 mi12:03:492:13:478:3722:17
9:11
#19582
30K
18.64 mi12:37:592:47:579:0134:10
11:00
#20921
20M
20.00 mi12:54:323:04:309:1316:33
12:11
#21568
21M
21.00 mi13:09:463:19:449:3115:14
15:14
#22294
35K
21.75 mi13:18:503:28:489:369:04
12:07
#22488
23M
23.00 mi13:36:043:46:029:5017:14
13:46
#22979
24M
24.00 mi13:48:043:58:029:5512:00
12:00
#23162
40K
24.85 mi13:58:544:08:5210:0110:50
12:40
#23286
25.2M
25.20 mi14:03:524:13:5010:044:58
14:24
#23390
Finish
26.22 mi14:17:364:27:3410:1313:44
13:29
#23769
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi19018692469241935971037103
10K6.21 mi3.10 mi18437+5816580+3446580+3441784862156215
15K9.32 mi3.11 mi18715-2786742-1626742-1621935971037103
20K12.43 mi3.11 mi19217-5027033-2917033-2912061978477847
Half13.11 mi0.68 mi19299-827081-487081-482070178867886
25K15.53 mi2.42 mi19582-2837244-1637244-1632073379437943
30K18.64 mi3.11 mi20921-13398046-8028046-8022400098689868
20M20.00 mi1.36 mi21568-6478399-3538399-353255171076410764
21M21.00 mi1.00 mi22294-7268829-4308829-430273451174511745
35K21.75 mi0.75 mi22488-1948956-1278956-127260351111211112
23M23.00 mi1.25 mi22979-4919250-2949250-294271291167011670
24M24.00 mi1.00 mi23162-1839379-1299379-129256881097410974
40K24.85 mi0.85 mi23286-1249451-729451-72258961109211092
25.2M25.20 mi0.35 mi23390-1049510-599510-59266731150011500
Finish26.22 mi1.02 mi23769-3799714-2049714-204278621202812028

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19359

Females

7103

F45-49

7103

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

17848

Females

6215

F45-49

6215

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19359

Females

7103

F45-49

7103

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

20619

Females

7847

F45-49

7847

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

20701

Females

7886

F45-49

7886

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20733

Females

7943

F45-49

7943

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

24000

Females

9868

F45-49

9868

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25517

Females

10764

F45-49

10764

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

27345

Females

11745

F45-49

11745

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

26035

Females

11112

F45-49

11112

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

27129

Females

11670

F45-49

11670

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

25688

Females

10974

F45-49

10974

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25896

Females

11092

F45-49

11092

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

26673

Females

11500

F45-49

11500

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

27862

Females

12028

F45-49

12028

Passing Analysis

Category:
Athletes Passed
1085
Passed By
5836
Net Change
-4751
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19018
5K → 10K66382+581#19018#18437
10K → 15K103381-278#18437#18715
15K → 20K85587-502#18715#19217
20K → Half1698-82#19217#19299
Half → 25K93376-283#19299#19582
25K → 30K351374-1339#19582#20921
30K → 20M13660-647#20921#21568
20M → 21M8734-726#21568#22294
21M → 35K11205-194#22294#22488
35K → 23M10501-491#22488#22979
23M → 24M21204-183#22979#23162
24M → 40K23147-124#23162#23286
40K → 25.2M2106-104#23286#23390
25.2M → Finish2381-379#23390#23769
TOTALS10855836-4751

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