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BOSTON MARATHON 2025

Bailey Ertel

Bib: 18856•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 47%
Gender (Female)
#0 / 12228
Top 33%
Masters (Masters Women)
#0 / 6759
Top 18%
Division (F40-44)
#0 / 1718
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
8:04/mi
25:03
↑ 97↓ 3451.5%
10K· 6.21 mi
8:02/mi
50:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:57/mi
1:14:44
↑ 67↓ 78
20K· 12.43 mi
7:56/mi
1:39:23
↑ 106↓ 860.1%
Half· 13.11 mi
7:53/mi
1:44:46
↑ 19↓ 370.5%
25K· 15.53 mi
7:59/mi
2:04:08
↑ 66↓ 880.2%
30K· 18.64 mi
8:05/mi
2:29:14
↑ 181↓ 1480.2%
20M
8:04/mi
2:40:12
↑ 64↓ 500.2%
21M
8:38/mi
2:48:50
↑ 106↓ 241.6%
35K· 21.75 mi
8:00/mi
2:54:49
↑ 17↓ 861.7%
23M
8:08/mi
3:05:00
↑ 23↓ 630.6%
24M
7:57/mi
3:12:57
↓ 821.3%
40K· 24.85 mi
8:05/mi
3:19:52
↓ 200.3%
25.2M
8:56/mi
3:22:57
↑ 13↓ 160.2%
Finish· 26.22 mi
7:56/mi
3:31:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:46
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:46:16
Pace8:06 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0725:038:0425:03
8:04
-
10K
6.21 mi11:41:0550:018:0324:58
8:02
-0:02
15K
9.32 mi12:05:481:14:448:0124:43
7:57
-0:05
20K
12.43 mi12:30:271:39:238:0024:39
7:56
-0:01
Half
13.11 mi12:35:501:44:467:595:23
7:53
-0:03
25K
15.53 mi12:55:122:04:087:5919:22
7:59
+0:06
30K
18.64 mi13:20:182:29:148:0025:06
8:05
+0:06
20M
20.00 mi13:31:162:40:128:0110:58
8:04
-0:01
21M
21.00 mi13:39:542:48:508:028:38
8:38
+0:34
35K
21.75 mi13:45:532:54:498:025:59
8:00
-0:38
23M
23.00 mi13:56:043:05:008:0310:11
8:08
+0:08
24M
24.00 mi14:04:013:12:578:027:57
7:57
-0:11
40K
24.85 mi14:10:563:19:528:026:55
8:05
+0:08
25.2M
25.20 mi14:14:013:22:578:033:05
8:56
+0:51
Finish
26.22 mi14:22:063:31:028:038:05
7:56
-1:00

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

8:03 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:27:57

99% of race

Time at Steady Pace

3:05

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:03 /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 mi11:16:0725:038:0425:03
8:04
#17104
10K
6.21 mi11:41:0550:018:0324:58
8:02
#16900
15K
9.32 mi12:05:481:14:448:0124:43
7:57
#16474
20K
12.43 mi12:30:271:39:238:0024:39
7:56
#15901
Half
13.11 mi12:35:501:44:467:595:23
7:53
#15862
25K
15.53 mi12:55:122:04:087:5919:22
7:59
#15474
30K
18.64 mi13:20:182:29:148:0025:06
8:05
#14786
20M
20.00 mi13:31:162:40:128:0110:58
8:04
#14410
21M
21.00 mi13:39:542:48:508:028:38
8:38
#14181
35K
21.75 mi13:45:532:54:498:025:59
8:00
#14079
23M
23.00 mi13:56:043:05:008:0310:11
8:08
#13867
24M
24.00 mi14:04:013:12:578:027:57
7:57
#13722
40K
24.85 mi14:10:563:19:528:026:55
8:05
#13577
25.2M
25.20 mi14:14:013:22:578:033:05
8:56
#13523
Finish
26.22 mi14:22:063:31:028:038:05
7:56
#13485
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi171045794579415705(Top 55%)4969(Top 41%)4969(Top 289%)
10K6.21 mi3.10 mi16900+2045662+1325662+13216747(Top 59%)5561(Top 45%)5561(Top 324%)
15K9.32 mi3.11 mi16474+4265420+2425420+24215705(Top 55%)4969(Top 41%)4969(Top 289%)
20K12.43 mi3.11 mi15901+5735092+3285092+32814408(Top 51%)4319(Top 35%)4319(Top 251%)
Half13.11 mi0.68 mi15862+395070+225070+2215031(Top 53%)4614(Top 38%)4614(Top 269%)
25K15.53 mi2.42 mi15474+3884872+1984872+19813808(Top 49%)4108(Top 34%)4108(Top 239%)
30K18.64 mi3.11 mi14786+6884552+3204552+32011960(Top 42%)3275(Top 27%)3275(Top 191%)
20M20.00 mi1.36 mi14410+3764371+1814371+18110937(Top 39%)2924(Top 24%)2924(Top 170%)
21M21.00 mi1.00 mi14181+2294262+1094262+10911313(Top 40%)3255(Top 27%)3255(Top 189%)
35K21.75 mi0.75 mi14079+1024231+314231+3112295(Top 43%)3802(Top 31%)3802(Top 221%)
23M23.00 mi1.25 mi13867+2124151+804151+8010977(Top 39%)3223(Top 26%)3223(Top 188%)
24M24.00 mi1.00 mi13722+1454102+494102+4910931(Top 38%)3273(Top 27%)3273(Top 191%)
40K24.85 mi0.85 mi13577+1454049+534049+5310826(Top 38%)3335(Top 27%)3335(Top 194%)
25.2M25.20 mi0.35 mi13523+544024+254024+2511540(Top 41%)3777(Top 31%)3777(Top 220%)
Finish26.22 mi1.02 mi13485+384027-34027-312447(Top 44%)4155(Top 34%)4155(Top 242%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

15705

Females

4969

F40-44

4969

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

16747

Females

5561

F40-44

5561

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

15705

Females

4969

F40-44

4969

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14408

Females

4319

F40-44

4319

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

15031

Females

4614

F40-44

4614

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13808

Females

4108

F40-44

4108

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11960

Females

3275

F40-44

3275

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10937

Females

2924

F40-44

2924

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

11313

Females

3255

F40-44

3255

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

12295

Females

3802

F40-44

3802

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10977

Females

3223

F40-44

3223

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10931

Females

3273

F40-44

3273

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10826

Females

3335

F40-44

3335

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11540

Females

3777

F40-44

3777

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2story building
+22ft-21ft

Overall

12447

Females

4155

F40-44

4155

Passing Analysis

Category:
Athletes Passed
4098
Passed By
479
Net Change
+3619
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17104
5K → 10K406202+204#17104#16900
10K → 15K46640+426#16900#16474
15K → 20K59320+573#16474#15901
20K → Half5920+39#15901#15862
Half → 25K40416+388#15862#15474
25K → 30K70012+688#15474#14786
30K → 20M3826+376#14786#14410
20M → 21M24314+229#14410#14181
21M → 35K12220+102#14181#14079
35K → 23M24028+212#14079#13867
23M → 24M16217+145#13867#13722
24M → 40K16318+145#13722#13577
40K → 25.2M7016+54#13577#13523
25.2M → Finish8850+38#13523#13485
TOTALS4098479+3619
📊

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