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BOSTON MARATHON 2025

Emily Anderson

CA

Bib: 16305 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 41%
Division (F18-39)
#0 / 5469
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
7:54/mi
24:32
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:51/mi
48:55
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:55/mi
1:13:32
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:10/mi
1:38:53
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:07/mi
1:44:25
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:33/mi
2:05:09
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:45/mi
2:32:21
↑ 181↓ 1480.2%
138 ft elev
20M
8:45/mi
2:44:14
↑ 64↓ 500.2%
148 ft elev
21M
9:13/mi
2:53:27
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:09/mi
2:59:33
↑ 17↓ 861.7%
156 ft elev
23M
8:33/mi
3:10:15
↑ 23↓ 630.6%
116 ft elev
24M
8:27/mi
3:18:42
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:31/mi
3:25:59
↓ 200.3%
20 ft elev
25.2M
9:11/mi
3:29:09
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:05/mi
3:37:23
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:25
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:52:58
Pace8:37 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:3524:327:5424:32
7:54
-
10K
6.21 mi11:22:5848:557:5224:23
7:51
-0:03
15K
9.32 mi11:47:351:13:327:5324:37
7:55
+0:04
20K
12.43 mi12:12:561:38:537:5725:21
8:10
+0:15
Half
13.11 mi12:18:281:44:257:585:32
8:07
-0:03
25K
15.53 mi12:39:122:05:098:0320:44
8:33
+0:26
30K
18.64 mi13:06:242:32:218:1027:12
8:45
+0:12
20M
20.00 mi13:18:172:44:148:1311:53
8:45
0:00
21M
21.00 mi13:27:302:53:278:169:13
9:13
+0:28
35K
21.75 mi13:33:362:59:338:156:06
8:09
-1:04
23M
23.00 mi13:44:183:10:158:1610:42
8:33
+0:24
24M
24.00 mi13:52:453:18:428:178:27
8:27
-0:06
40K
24.85 mi14:00:023:25:598:177:17
8:31
+0:04
25.2M
25.20 mi14:03:123:29:098:183:10
9:11
+0:40
Finish
26.22 mi14:11:263:37:238:188:14
8:05
-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

7:51 /mi

Average Pace

8:18 /mi

Slowest Pace

9:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:55

76% of race

Time at Steady Pace

51:28

24% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:17 /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 mi10:58:3524:327:5424:32
7:54
#15673
10K
6.21 mi11:22:5848:557:5224:23
7:51
#15439
15K
9.32 mi11:47:351:13:327:5324:37
7:55
#15416
20K
12.43 mi12:12:561:38:537:5725:21
8:10
#15618
Half
13.11 mi12:18:281:44:257:585:32
8:07
#15669
25K
15.53 mi12:39:122:05:098:0320:44
8:33
#15997
30K
18.64 mi13:06:242:32:218:1027:12
8:45
#16030
20M
20.00 mi13:18:172:44:148:1311:53
8:45
#15947
21M
21.00 mi13:27:302:53:278:169:13
9:13
#15812
35K
21.75 mi13:33:362:59:338:156:06
8:09
#15696
23M
23.00 mi13:44:183:10:158:1610:42
8:33
#15531
24M
24.00 mi13:52:453:18:428:178:27
8:27
#15466
40K
24.85 mi14:00:023:25:598:177:17
8:31
#15365
25.2M
25.20 mi14:03:123:29:098:183:10
9:11
#15317
Finish
26.22 mi14:11:263:37:238:188:14
8:05
#15241
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi156734940494015431(Top 54%)4825(Top 39%)4825(Top 88%)
10K6.21 mi3.10 mi15439+2344803+1374803+13715260(Top 54%)4697(Top 38%)4697(Top 86%)
15K9.32 mi3.11 mi15416+234796+74796+715431(Top 54%)4825(Top 39%)4825(Top 88%)
20K12.43 mi3.11 mi15618-2024939-1434939-14316054(Top 57%)5247(Top 43%)5247(Top 96%)
Half13.11 mi0.68 mi15669-514974-354974-3516702(Top 59%)5577(Top 46%)5577(Top 102%)
25K15.53 mi2.42 mi15997-3285164-1905164-19017489(Top 62%)6126(Top 50%)6126(Top 112%)
30K18.64 mi3.11 mi16030-335240-765240-7616329(Top 57%)5646(Top 46%)5646(Top 103%)
20M20.00 mi1.36 mi15947+835239+15239+115357(Top 54%)5236(Top 43%)5236(Top 96%)
21M21.00 mi1.00 mi15812+1355199+405199+4014734(Top 52%)5021(Top 41%)5021(Top 92%)
35K21.75 mi0.75 mi15696+1165151+485151+4813361(Top 47%)4360(Top 36%)4360(Top 80%)
23M23.00 mi1.25 mi15531+1655088+635088+6313620(Top 48%)4604(Top 38%)4604(Top 84%)
24M24.00 mi1.00 mi15466+655072+165072+1614224(Top 50%)4943(Top 40%)4943(Top 90%)
40K24.85 mi0.85 mi15365+1015051+215051+2113584(Top 48%)4750(Top 39%)4750(Top 87%)
25.2M25.20 mi0.35 mi15317+485036+155036+1512900(Top 45%)4458(Top 36%)4458(Top 82%)
Finish26.22 mi1.02 mi15241+765013+235013+2313478(Top 47%)4686(Top 38%)4686(Top 86%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15431

Females

4825

F18-39

4825

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15260

Females

4697

F18-39

4697

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15431

Females

4825

F18-39

4825

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

16054

Females

5247

F18-39

5247

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

16702

Females

5577

F18-39

5577

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

17489

Females

6126

F18-39

6126

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16329

Females

5646

F18-39

5646

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

15357

Females

5236

F18-39

5236

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

14734

Females

5021

F18-39

5021

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

13361

Females

4360

F18-39

4360

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

13620

Females

4604

F18-39

4604

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

14224

Females

4943

F18-39

4943

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13584

Females

4750

F18-39

4750

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12900

Females

4458

F18-39

4458

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

13478

Females

4686

F18-39

4686

Passing Analysis

Category:
Athletes Passed
2174
Passed By
1742
Net Change
+432
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15673
5K → 10K448214+234#15673#15439
10K → 15K203180+23#15439#15416
15K → 20K153355-202#15416#15618
20K → Half1566-51#15618#15669
Half → 25K97425-328#15669#15997
25K → 30K215248-33#15997#16030
30K → 20M15572+83#16030#15947
20M → 21M17944+135#15947#15812
21M → 35K12913+116#15812#15696
35K → 23M19328+165#15696#15531
23M → 24M10237+65#15531#15466
24M → 40K12827+101#15466#15365
40K → 25.2M557+48#15365#15317
25.2M → Finish10226+76#15317#15241
TOTALS21741742+432
📊

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