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BOSTON MARATHON 2025

Emma Leiner

Bib: 15294•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 13%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 4%
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
6:50/mi
21:14
↑ 97↓ 3451.5%
10K· 6.21 mi
6:47/mi
42:19
↑ 79↓ 1380.4%
15K· 9.32 mi
6:47/mi
1:03:24
↑ 67↓ 78
20K· 12.43 mi
6:43/mi
1:24:17
↑ 106↓ 860.1%
Half· 13.11 mi
6:36/mi
1:28:47
↑ 19↓ 370.5%
25K· 15.53 mi
6:39/mi
1:44:55
↑ 66↓ 880.2%
30K· 18.64 mi
6:48/mi
2:06:02
↑ 181↓ 1480.2%
20M
6:44/mi
2:15:11
↑ 64↓ 500.2%
21M
7:07/mi
2:22:18
↑ 106↓ 241.6%
35K· 21.75 mi
6:16/mi
2:26:59
↑ 17↓ 861.7%
23M
6:41/mi
2:35:21
↑ 23↓ 630.6%
24M
6:31/mi
2:41:52
↓ 821.3%
40K· 24.85 mi
6:44/mi
2:47:37
↓ 200.3%
25.2M
7:24/mi
2:50:10
↑ 13↓ 160.2%
Finish· 26.22 mi
6:40/mi
2:56:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:28:47
Pace6:46 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:28:11
Pace6:44 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:0421:146:5021:14
6:50
-
10K
6.21 mi11:08:0942:196:4921:05
6:47
-0:03
15K
9.32 mi11:29:141:03:246:4821:05
6:47
0:00
20K
12.43 mi11:50:071:24:176:4720:53
6:43
-0:04
Half
13.11 mi11:54:371:28:476:464:30
6:36
-0:07
25K
15.53 mi12:10:451:44:556:4516:08
6:39
+0:03
30K
18.64 mi12:31:522:06:026:4621:07
6:48
+0:09
20M
20.00 mi12:41:012:15:116:469:09
6:44
-0:04
21M
21.00 mi12:48:082:22:186:477:07
7:07
+0:23
35K
21.75 mi12:52:492:26:596:464:41
6:16
-0:51
23M
23.00 mi13:01:112:35:216:458:22
6:41
+0:25
24M
24.00 mi13:07:422:41:526:456:31
6:31
-0:10
40K
24.85 mi13:13:272:47:376:455:45
6:44
+0:13
25.2M
25.20 mi13:16:002:50:106:452:33
7:24
+0:40
Finish
26.22 mi13:22:482:56:586:456:48
6:40
-0:44

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

6:16 /mi

Average Pace

6:45 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:18

95% of race

Time at Steady Pace

7:07

4% of race

Time at Slower Pace

2:33

1% of race

Average Pace: 6:45 /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 mi10:47:0421:146:5021:14
6:50
#6601
10K
6.21 mi11:08:0942:196:4921:05
6:47
#6412
15K
9.32 mi11:29:141:03:246:4821:05
6:47
#6240
20K
12.43 mi11:50:071:24:176:4720:53
6:43
#5794
Half
13.11 mi11:54:371:28:476:464:30
6:36
#5707
25K
15.53 mi12:10:451:44:556:4516:08
6:39
#5308
30K
18.64 mi12:31:522:06:026:4621:07
6:48
#4846
20M
20.00 mi12:41:012:15:116:469:09
6:44
#4593
21M
21.00 mi12:48:082:22:186:477:07
7:07
#4423
35K
21.75 mi12:52:492:26:596:464:41
6:16
#4230
23M
23.00 mi13:01:112:35:216:458:22
6:41
#4053
24M
24.00 mi13:07:422:41:526:456:31
6:31
#3923
40K
24.85 mi13:13:272:47:376:455:45
6:44
#3826
25.2M
25.20 mi13:16:002:50:106:452:33
7:24
#3793
Finish
26.22 mi13:22:482:56:586:456:48
6:40
#3735
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi66015895895965(Top 21%)522(Top 4%)522(Top 10%)
10K6.21 mi3.10 mi6412+189551+38551+386259(Top 22%)549(Top 4%)549(Top 10%)
15K9.32 mi3.11 mi6240+172521+30521+305965(Top 21%)522(Top 4%)522(Top 10%)
20K12.43 mi3.11 mi5794+446464+57464+574638(Top 16%)321(Top 3%)321(Top 6%)
Half13.11 mi0.68 mi5707+87455+9455+94456(Top 16%)275(Top 2%)275(Top 5%)
25K15.53 mi2.42 mi5308+399400+55400+553835(Top 14%)234(Top 2%)234(Top 4%)
30K18.64 mi3.11 mi4846+462353+47353+473445(Top 12%)229(Top 2%)229(Top 4%)
20M20.00 mi1.36 mi4593+253322+31322+312648(Top 9%)155(Top 1%)155(Top 3%)
21M21.00 mi1.00 mi4423+170306+16306+162796(Top 10%)193(Top 2%)193(Top 4%)
35K21.75 mi0.75 mi4230+193285+21285+211502(Top 5%)83(Top 0.7%)83(Top 2%)
23M23.00 mi1.25 mi4053+177274+11274+112204(Top 8%)140(Top 1%)140(Top 3%)
24M24.00 mi1.00 mi3923+130263+11263+112146(Top 8%)149(Top 1%)149(Top 3%)
40K24.85 mi0.85 mi3826+97260+3260+32539(Top 9%)219(Top 2%)219(Top 4%)
25.2M25.20 mi0.35 mi3793+33256+4256+43013(Top 11%)316(Top 3%)316(Top 6%)
Finish26.22 mi1.02 mi3735+58255+1255+13752(Top 13%)486(Top 4%)486(Top 9%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21story building
+97ft-345ft

Overall

5965

Females

522

F18-39

522

5K→10K

3.1 - 6.2 mi

Top 22%
×5story building
+79ft-138ft

Overall

6259

Females

549

F18-39

549

10K→15K

6.2 - 9.3 mi

Top 21%
×3story building
+67ft-78ft

Overall

5965

Females

522

F18-39

522

15K→20K

9.3 - 12.4 mi

Top 16%
×5story building
+106ft-86ft

Overall

4638

Females

321

F18-39

321

20K→Half

12.4 - 13.1 mi

Top 16%
×2story building
+19ft-37ft

Overall

4456

Females

275

F18-39

275

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

3835

Females

234

F18-39

234

25K→30K

15.5 - 18.6 mi

Top 12%
×9story building
+181ft-148ft

Overall

3445

Females

229

F18-39

229

30K→20M

18.6 - 20.0 mi

Top 9%
×5story building
+64ft-50ft

Overall

2648

Females

155

F18-39

155

20M→21M

20.0 - 21.0 mi

Top 10%
×8story building
+106ft-24ft

Overall

2796

Females

193

F18-39

193

21M→35K

21.0 - 21.8 mi

Top 5%
×7story building
+17ft-86ft

Overall

1502

Females

83

F18-39

83

35K→23M

21.8 - 23.0 mi

Top 8%
×5story building
+23ft-63ft

Overall

2204

Females

140

F18-39

140

23M→24M

23.0 - 24.0 mi

Top 8%
×6story building
+12ft-82ft

Overall

2146

Females

149

F18-39

149

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2539

Females

219

F18-39

219

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3013

Females

316

F18-39

316

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2story building
+22ft-21ft

Overall

3752

Females

486

F18-39

486

Passing Analysis

Category:
Athletes Passed
3095
Passed By
229
Net Change
+2866
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6601
5K → 10K28596+189#6601#6412
10K → 15K24371+172#6412#6240
15K → 20K4504+446#6240#5794
20K → Half892+87#5794#5707
Half → 25K4045+399#5707#5308
25K → 30K4642+462#5308#4846
30K → 20M2530+253#4846#4593
20M → 21M1766+170#4593#4423
21M → 35K1941+193#4423#4230
35K → 23M1781+177#4230#4053
23M → 24M1355+130#4053#3923
24M → 40K1036+97#3923#3826
40K → 25.2M374+33#3826#3793
25.2M → Finish8426+58#3793#3735
TOTALS3095229+2866
📊

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