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BOSTON MARATHON 2025

Elaine Chontos

Bib: 25467•F

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
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
9:39/mi
29:58
↑ 97↓ 3451.5%
10K· 6.21 mi
9:44/mi
1:00:12
↑ 79↓ 1380.4%
15K· 9.32 mi
9:45/mi
1:30:31
↑ 67↓ 78
20K· 12.43 mi
9:52/mi
2:01:11
↑ 106↓ 860.1%
Half· 13.11 mi
9:52/mi
2:07:55
↑ 19↓ 370.5%
25K· 15.53 mi
9:55/mi
2:31:57
↑ 66↓ 880.2%
30K· 18.64 mi
10:11/mi
3:03:34
↑ 181↓ 1480.2%
20M
10:09/mi
3:17:22
↑ 64↓ 500.2%
21M
11:00/mi
3:28:22
↑ 106↓ 241.6%
35K· 21.75 mi
9:43/mi
3:35:38
↑ 17↓ 861.7%
23M
10:13/mi
3:48:26
↑ 23↓ 630.6%
24M
10:23/mi
3:58:49
↓ 821.3%
40K· 24.85 mi
10:14/mi
4:07:34
↓ 200.3%
25.2M
11:24/mi
4:11:30
↑ 13↓ 160.2%
Finish· 26.22 mi
10:09/mi
4:21:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:55
Pace9:45 /mi
2nd Half
Distance13.11 mi
Time2:13:56
Pace10:13 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:3129:589:3929:58
9:39
-
10K
6.21 mi12:00:451:00:129:4130:14
9:44
+0:05
15K
9.32 mi12:31:041:30:319:4330:19
9:45
+0:01
20K
12.43 mi13:01:442:01:119:4530:40
9:52
+0:07
Half
13.11 mi13:08:282:07:559:456:44
9:52
0:00
25K
15.53 mi13:32:302:31:579:4724:02
9:55
+0:03
30K
18.64 mi14:04:073:03:349:5131:37
10:11
+0:16
20M
20.00 mi14:17:553:17:229:5213:48
10:09
-0:02
21M
21.00 mi14:28:553:28:229:5511:00
11:00
+0:51
35K
21.75 mi14:36:113:35:389:557:16
9:43
-1:17
23M
23.00 mi14:48:593:48:269:5612:48
10:13
+0:30
24M
24.00 mi14:59:223:58:499:5710:23
10:23
+0:10
40K
24.85 mi15:08:074:07:349:588:45
10:14
-0:09
25.2M
25.20 mi15:12:034:11:309:593:56
11:24
+1:10
Finish
26.22 mi15:22:244:21:5110:0010:21
10:09
-1:15

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

9:39 /mi

Average Pace

10:00 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:06:55

94% of race

Time at Steady Pace

11:00

4% of race

Time at Slower Pace

3:56

2% of race

Average Pace: 9:59 /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 mi11:30:3129:589:3929:58
9:39
#24674
10K
6.21 mi12:00:451:00:129:4130:14
9:44
#24712
15K
9.32 mi12:31:041:30:319:4330:19
9:45
#24610
20K
12.43 mi13:01:442:01:119:4530:40
9:52
#24416
Half
13.11 mi13:08:282:07:559:456:44
9:52
#24433
25K
15.53 mi13:32:302:31:579:4724:02
9:55
#24189
30K
18.64 mi14:04:073:03:349:5131:37
10:11
#23810
20M
20.00 mi14:17:553:17:229:5213:48
10:09
#23635
21M
21.00 mi14:28:553:28:229:5511:00
11:00
#23505
35K
21.75 mi14:36:113:35:389:557:16
9:43
#23388
23M
23.00 mi14:48:593:48:269:5612:48
10:13
#23284
24M
24.00 mi14:59:223:58:499:5710:23
10:23
#23233
40K
24.85 mi15:08:074:07:349:588:45
10:14
#23149
25.2M
25.20 mi15:12:034:11:309:593:56
11:24
#23135
Finish
26.22 mi15:22:244:21:5110:0010:21
10:09
#23141
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi24674100461004624450(Top 86%)9923(Top 81%)9923(Top 1590%)
10K6.21 mi3.10 mi24712-3810070-2410070-2424696(Top 87%)10064(Top 82%)10064(Top 1613%)
15K9.32 mi3.11 mi24610+10210018+5210018+5224450(Top 86%)9923(Top 81%)9923(Top 1590%)
20K12.43 mi3.11 mi24416+1949928+909928+9023951(Top 84%)9677(Top 79%)9677(Top 1551%)
Half13.11 mi0.68 mi24433-179936-89936-824558(Top 86%)10025(Top 82%)10025(Top 1607%)
25K15.53 mi2.42 mi24189+2449813+1239813+12323037(Top 81%)9214(Top 75%)9214(Top 1477%)
30K18.64 mi3.11 mi23810+3799632+1819632+18122134(Top 78%)8840(Top 72%)8840(Top 1417%)
20M20.00 mi1.36 mi23635+1759563+699563+6921461(Top 76%)8611(Top 70%)8611(Top 1380%)
21M21.00 mi1.00 mi23505+1309501+629501+6221420(Top 75%)8670(Top 71%)8670(Top 1389%)
35K21.75 mi0.75 mi23388+1179454+479454+4721077(Top 74%)8552(Top 70%)8552(Top 1371%)
23M23.00 mi1.25 mi23284+1049417+379417+3721218(Top 75%)8671(Top 71%)8671(Top 1390%)
24M24.00 mi1.00 mi23233+519413+49413+422496(Top 79%)9390(Top 77%)9390(Top 1505%)
40K24.85 mi0.85 mi23149+849386+279386+2721205(Top 75%)8775(Top 72%)8775(Top 1406%)
25.2M25.20 mi0.35 mi23135+149386938621848(Top 77%)9086(Top 74%)9086(Top 1456%)
Finish26.22 mi1.02 mi23141-69401-159401-1523419(Top 82%)9886(Top 81%)9886(Top 1584%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

24450

Females

9923

F60-64

9923

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

24696

Females

10064

F60-64

10064

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

24450

Females

9923

F60-64

9923

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

23951

Females

9677

F60-64

9677

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24558

Females

10025

F60-64

10025

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

23037

Females

9214

F60-64

9214

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

22134

Females

8840

F60-64

8840

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

21461

Females

8611

F60-64

8611

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

21420

Females

8670

F60-64

8670

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

21077

Females

8552

F60-64

8552

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

21218

Females

8671

F60-64

8671

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22496

Females

9390

F60-64

9390

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21205

Females

8775

F60-64

8775

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21848

Females

9086

F60-64

9086

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

23419

Females

9886

F60-64

9886

Passing Analysis

Category:
Athletes Passed
2090
Passed By
557
Net Change
+1533
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24674
5K → 10K189227-38#24674#24712
10K → 15K18381+102#24712#24610
15K → 20K23642+194#24610#24416
20K → Half1835-17#24416#24433
Half → 25K26723+244#24433#24189
25K → 30K40223+379#24189#23810
30K → 20M1816+175#23810#23635
20M → 21M14919+130#23635#23505
21M → 35K1247+117#23505#23388
35K → 23M11511+104#23388#23284
23M → 24M7524+51#23284#23233
24M → 40K928+84#23233#23149
40K → 25.2M2410+14#23149#23135
25.2M → Finish3541-6#23135#23141
TOTALS2090557+1533
📊

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