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BOSTON MARATHON 2025

Emily Houghton

Bib: 23107•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 44%
Masters (Masters Women)
#0 / 6759
Top 31%
Division (F45-49)
#0 / 1813
Top 37%
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
8:15/mi
25:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:09/mi
50:56
↑ 79↓ 1380.4%
15K· 9.32 mi
8:05/mi
1:16:04
↑ 67↓ 78
20K· 12.43 mi
8:05/mi
1:41:10
↑ 106↓ 860.1%
Half· 13.11 mi
7:59/mi
1:46:37
↑ 19↓ 370.5%
25K· 15.53 mi
8:12/mi
2:06:30
↑ 66↓ 880.2%
30K· 18.64 mi
8:57/mi
2:34:17
↑ 181↓ 1480.2%
20M
9:49/mi
2:47:38
↑ 64↓ 500.2%
21M
8:58/mi
2:56:36
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
3:02:39
↑ 17↓ 861.7%
23M
8:35/mi
3:13:24
↑ 23↓ 630.6%
24M
8:17/mi
3:21:41
↓ 821.3%
40K· 24.85 mi
8:19/mi
3:28:48
↓ 200.3%
25.2M
9:11/mi
3:31:58
↑ 13↓ 160.2%
Finish· 26.22 mi
7:53/mi
3:40:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:37
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:53:23
Pace8:39 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:1125:378:1525:37
8:15
-
10K
6.21 mi11:46:3050:568:1225:19
8:09
-0:06
15K
9.32 mi12:11:381:16:048:1025:08
8:05
-0:04
20K
12.43 mi12:36:441:41:108:0825:06
8:05
0:00
Half
13.11 mi12:42:111:46:378:085:27
7:59
-0:06
25K
15.53 mi13:02:042:06:308:0919:53
8:12
+0:13
30K
18.64 mi13:29:512:34:178:1727:47
8:57
+0:45
20M
20.00 mi13:43:122:47:388:2313:21
9:49
+0:52
21M
21.00 mi13:52:102:56:368:258:58
8:58
-0:51
35K
21.75 mi13:58:133:02:398:246:03
8:05
-0:53
23M
23.00 mi14:08:583:13:248:2510:45
8:35
+0:30
24M
24.00 mi14:17:153:21:418:248:17
8:17
-0:18
40K
24.85 mi14:24:223:28:488:247:07
8:19
+0:02
25.2M
25.20 mi14:27:323:31:588:253:10
9:11
+0:52
Finish
26.22 mi14:35:343:40:008:248:02
7:53
-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

7:53 /mi

Average Pace

8:24 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

13:29

6% of race

Time at Steady Pace

2:22:30

65% of race

Time at Slower Pace

1:04:01

29% of race

Average Pace: 8:23 /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 mi11:21:1125:378:1525:37
8:15
#18398
10K
6.21 mi11:46:3050:568:1225:19
8:09
#17967
15K
9.32 mi12:11:381:16:048:1025:08
8:05
#17497
20K
12.43 mi12:36:441:41:108:0825:06
8:05
#16976
Half
13.11 mi12:42:111:46:378:085:27
7:59
#16918
25K
15.53 mi13:02:042:06:308:0919:53
8:12
#16592
30K
18.64 mi13:29:512:34:178:1727:47
8:57
#16699
20M
20.00 mi13:43:122:47:388:2313:21
9:49
#17025
21M
21.00 mi13:52:102:56:368:258:58
8:58
#16768
35K
21.75 mi13:58:133:02:398:246:03
8:05
#16606
23M
23.00 mi14:08:583:13:248:2510:45
8:35
#16399
24M
24.00 mi14:17:153:21:418:248:17
8:17
#16221
40K
24.85 mi14:24:223:28:488:247:07
8:19
#16088
25.2M
25.20 mi14:27:323:31:588:253:10
9:11
#16017
Finish
26.22 mi14:35:343:40:008:248:02
7:53
#15868
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi183986577657716678(Top 59%)5547(Top 45%)5547(Top 306%)
10K6.21 mi3.10 mi17967+4316305+2726305+27217545(Top 62%)6026(Top 49%)6026(Top 332%)
15K9.32 mi3.11 mi17497+4706011+2946011+29416678(Top 59%)5547(Top 45%)5547(Top 306%)
20K12.43 mi3.11 mi16976+5215724+2875724+28715506(Top 55%)4917(Top 40%)4917(Top 271%)
Half13.11 mi0.68 mi16918+585692+325692+3215873(Top 56%)5108(Top 42%)5108(Top 282%)
25K15.53 mi2.42 mi16592+3265519+1735519+17315339(Top 54%)4924(Top 40%)4924(Top 272%)
30K18.64 mi3.11 mi16699-1075634-1155634-11517381(Top 61%)6234(Top 51%)6234(Top 344%)
20M20.00 mi1.36 mi17025-3265860-2265860-22620369(Top 72%)7997(Top 65%)7997(Top 441%)
21M21.00 mi1.00 mi16768+2575741+1195741+11913344(Top 47%)4297(Top 35%)4297(Top 237%)
35K21.75 mi0.75 mi16606+1625667+745667+7412909(Top 45%)4128(Top 34%)4128(Top 228%)
23M23.00 mi1.25 mi16399+2075572+955572+9513863(Top 49%)4735(Top 39%)4735(Top 261%)
24M24.00 mi1.00 mi16221+1785507+655507+6513182(Top 46%)4421(Top 36%)4421(Top 244%)
40K24.85 mi0.85 mi16088+1335457+505457+5012348(Top 43%)4117(Top 34%)4117(Top 227%)
25.2M25.20 mi0.35 mi16017+715429+285429+2812915(Top 45%)4473(Top 37%)4473(Top 247%)
Finish26.22 mi1.02 mi15868+1495370+595370+5912102(Top 43%)3990(Top 33%)3990(Top 220%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

16678

Females

5547

F45-49

5547

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17545

Females

6026

F45-49

6026

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

16678

Females

5547

F45-49

5547

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

15506

Females

4917

F45-49

4917

20K→Half

12.4 - 13.1 mi

Top 56%
×2story building
+19ft-37ft

Overall

15873

Females

5108

F45-49

5108

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

15339

Females

4924

F45-49

4924

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

17381

Females

6234

F45-49

6234

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

20369

Females

7997

F45-49

7997

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

13344

Females

4297

F45-49

4297

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12909

Females

4128

F45-49

4128

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

13863

Females

4735

F45-49

4735

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

13182

Females

4421

F45-49

4421

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

12348

Females

4117

F45-49

4117

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12915

Females

4473

F45-49

4473

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

12102

Females

3990

F45-49

3990

Passing Analysis

Category:
Athletes Passed
3438
Passed By
908
Net Change
+2530
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18398
5K → 10K545114+431#18398#17967
10K → 15K50636+470#17967#17497
15K → 20K53514+521#17497#16976
20K → Half7012+58#16976#16918
Half → 25K34317+326#16918#16592
25K → 30K180287-107#16592#16699
30K → 20M31357-326#16699#17025
20M → 21M2658+257#17025#16768
21M → 35K1664+162#16768#16606
35K → 23M22720+207#16606#16399
23M → 24M1868+178#16399#16221
24M → 40K14411+133#16221#16088
40K → 25.2M754+71#16088#16017
25.2M → Finish16516+149#16017#15868
TOTALS3438908+2530
📊

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