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BOSTON MARATHON 2025

Emily Shay

Bib: 11731•F

WA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 33%
Gender (Female)
#0 / 12228
Top 16%
Division (F18-39)
#0 / 5469
Top 28%
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
7:22/mi
22:53
↑ 97↓ 3451.5%
10K· 6.21 mi
7:24/mi
45:52
↑ 79↓ 1380.4%
15K· 9.32 mi
7:29/mi
1:09:08
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:32:51
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:38:03
↑ 19↓ 370.5%
25K· 15.53 mi
7:36/mi
1:56:29
↑ 66↓ 880.2%
30K· 18.64 mi
7:49/mi
2:20:46
↑ 181↓ 1480.2%
20M
7:53/mi
2:31:29
↑ 64↓ 500.2%
21M
8:12/mi
2:39:41
↑ 106↓ 241.6%
35K· 21.75 mi
7:17/mi
2:45:08
↑ 17↓ 861.7%
23M
7:25/mi
2:54:25
↑ 23↓ 630.6%
24M
7:04/mi
3:01:29
↓ 821.3%
40K· 24.85 mi
7:17/mi
3:07:43
↓ 200.3%
25.2M
7:56/mi
3:10:27
↑ 13↓ 160.2%
Finish· 26.22 mi
6:50/mi
3:17:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:03
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:39:22
Pace7:35 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4122:537:2222:53
7:22
-
10K
6.21 mi11:12:4045:527:2322:59
7:24
+0:02
15K
9.32 mi11:35:561:09:087:2523:16
7:29
+0:05
20K
12.43 mi11:59:391:32:517:2823:43
7:38
+0:09
Half
13.11 mi12:04:511:38:037:295:12
7:37
-0:01
25K
15.53 mi12:23:171:56:297:3018:26
7:36
-0:01
30K
18.64 mi12:47:342:20:467:3324:17
7:49
+0:13
20M
20.00 mi12:58:172:31:297:3410:43
7:53
+0:04
21M
21.00 mi13:06:292:39:417:368:12
8:12
+0:19
35K
21.75 mi13:11:562:45:087:365:27
7:17
-0:55
23M
23.00 mi13:21:132:54:257:359:17
7:25
+0:08
24M
24.00 mi13:28:173:01:297:347:04
7:04
-0:21
40K
24.85 mi13:34:313:07:437:336:14
7:17
+0:13
25.2M
25.20 mi13:37:153:10:277:332:44
7:56
+0:39
Finish
26.22 mi13:44:133:17:257:326:58
6:50
-1:06

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

6:50 /mi

Average Pace

7:32 /mi

Slowest Pace

8:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:08

53% of race

Time at Steady Pace

1:25:05

43% of race

Time at Slower Pace

8:12

4% of race

Average Pace: 7:32 /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 mi10:49:4122:537:2222:53
7:22
#11016
10K
6.21 mi11:12:4045:527:2322:59
7:24
#11074
15K
9.32 mi11:35:561:09:087:2523:16
7:29
#11226
20K
12.43 mi11:59:391:32:517:2823:43
7:38
#11407
Half
13.11 mi12:04:511:38:037:295:12
7:37
#11470
25K
15.53 mi12:23:171:56:297:3018:26
7:36
#11319
30K
18.64 mi12:47:342:20:467:3324:17
7:49
#11038
20M
20.00 mi12:58:172:31:297:3410:43
7:53
#10890
21M
21.00 mi13:06:292:39:417:368:12
8:12
#10703
35K
21.75 mi13:11:562:45:087:365:27
7:17
#10548
23M
23.00 mi13:21:132:54:257:359:17
7:25
#10219
24M
24.00 mi13:28:173:01:297:347:04
7:04
#9895
40K
24.85 mi13:34:313:07:437:336:14
7:17
#9684
25.2M
25.20 mi13:37:153:10:277:332:44
7:56
#9577
Finish
26.22 mi13:44:133:17:257:326:58
6:50
#9336
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi110162291229111682(Top 41%)2728(Top 22%)2728(Top 50%)
10K6.21 mi3.10 mi11074-582333-422333-4211165(Top 39%)2398(Top 20%)2398(Top 44%)
15K9.32 mi3.11 mi11226-1522431-982431-9811682(Top 41%)2728(Top 22%)2728(Top 50%)
20K12.43 mi3.11 mi11407-1812557-1262557-12611828(Top 42%)2901(Top 24%)2901(Top 53%)
Half13.11 mi0.68 mi11470-632593-362593-3612763(Top 45%)3342(Top 27%)3342(Top 61%)
25K15.53 mi2.42 mi11319+1512547+462547+4610789(Top 38%)2476(Top 20%)2476(Top 45%)
30K18.64 mi3.11 mi11038+2812489+582489+5810081(Top 35%)2322(Top 19%)2322(Top 42%)
20M20.00 mi1.36 mi10890+1482451+382451+389637(Top 34%)2271(Top 19%)2271(Top 42%)
21M21.00 mi1.00 mi10703+1872396+552396+558618(Top 30%)1992(Top 16%)1992(Top 36%)
35K21.75 mi0.75 mi10548+1552329+672329+677204(Top 25%)1381(Top 11%)1381(Top 25%)
23M23.00 mi1.25 mi10219+3292220+1092220+1096162(Top 22%)1087(Top 9%)1087(Top 20%)
24M24.00 mi1.00 mi9895+3242086+1342086+1345082(Top 18%)766(Top 6%)766(Top 14%)
40K24.85 mi0.85 mi9684+2112020+662020+665654(Top 20%)1005(Top 8%)1005(Top 18%)
25.2M25.20 mi0.35 mi9577+1071985+351985+355673(Top 20%)1136(Top 9%)1136(Top 21%)
Finish26.22 mi1.02 mi9336+2411913+721913+724766(Top 17%)791(Top 6%)791(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11682

Females

2728

F18-39

2728

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

11165

Females

2398

F18-39

2398

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11682

Females

2728

F18-39

2728

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11828

Females

2901

F18-39

2901

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12763

Females

3342

F18-39

3342

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10789

Females

2476

F18-39

2476

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

10081

Females

2322

F18-39

2322

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9637

Females

2271

F18-39

2271

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8618

Females

1992

F18-39

1992

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

7204

Females

1381

F18-39

1381

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

6162

Females

1087

F18-39

1087

23M→24M

23.0 - 24.0 mi

Top 18%
×6story building
+12ft-82ft

Overall

5082

Females

766

F18-39

766

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5654

Females

1005

F18-39

1005

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5673

Females

1136

F18-39

1136

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4766

Females

791

F18-39

791

Passing Analysis

Category:
Athletes Passed
2895*
Passed By
1215
Net Change
+1680
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11016
5K → 10K235293-58#11016#11074
10K → 15K136288-152#11074#11226
15K → 20K122303-181#11226#11407
20K → Half2083-63#11407#11470
Half → 25K22675+151#11470#11319
25K → 30K37796+281#11319#11038
30K → 20M18335+148#11038#10890
20M → 21M20720+187#10890#10703
21M → 35K1594+155#10703#10548
35K → 23M3312+329#10548#10219
23M → 24M328*4+324#10219#9895
24M → 40K2121+211#9895#9684
40K → 25.2M1103+107#9684#9577
25.2M → Finish2498+241#9577#9336
TOTALS2895*1215+1680

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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