Boston Marathon logo
BOSTON MARATHON 2025

Cielo Oyler

UT

Bib: 18531 F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 47%
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
7:45/mi
24:05
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:55/mi
48:42
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:12/mi
1:14:11
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:31/mi
1:40:38
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:17/mi
1:46:17
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:43/mi
2:07:24
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:56/mi
2:35:08
↑ 181↓ 1480.2%
138 ft elev
20M
9:03/mi
2:47:26
↑ 64↓ 500.2%
148 ft elev
21M
10:01/mi
2:57:27
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:20/mi
3:03:41
↑ 17↓ 861.7%
156 ft elev
23M
8:57/mi
3:14:53
↑ 23↓ 630.6%
116 ft elev
24M
8:26/mi
3:23:19
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:44/mi
3:30:47
↓ 200.3%
20 ft elev
25.2M
10:00/mi
3:34:14
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:38/mi
3:43:02
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Is this your race?

Claim it for a free AI report

A coach's-eye read of your race — emailed to you, free.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:17
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time1:56:45
Pace8:54 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4024:057:4524:05
7:45
-
10K
6.21 mi11:39:1748:427:5024:37
7:55
+0:10
15K
9.32 mi12:04:461:14:117:5825:29
8:12
+0:17
20K
12.43 mi12:31:131:40:388:0626:27
8:31
+0:19
Half
13.11 mi12:36:521:46:178:065:39
8:17
-0:14
25K
15.53 mi12:57:592:07:248:1221:07
8:43
+0:26
30K
18.64 mi13:25:432:35:088:1927:44
8:56
+0:13
20M
20.00 mi13:38:012:47:268:2212:18
9:03
+0:07
21M
21.00 mi13:48:022:57:278:2710:01
10:01
+0:58
35K
21.75 mi13:54:163:03:418:276:14
8:20
-1:41
23M
23.00 mi14:05:283:14:538:2811:12
8:57
+0:37
24M
24.00 mi14:13:543:23:198:288:26
8:26
-0:31
40K
24.85 mi14:21:223:30:478:297:28
8:44
+0:18
25.2M
25.20 mi14:24:493:34:148:303:27
10:00
+1:16
Finish
26.22 mi14:33:373:43:028:318:48
8:38
-1:22

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

7:45 /mi

Average Pace

8:31 /mi

Slowest Pace

10:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:50

36% of race

Time at Steady Pace

1:46:14

48% of race

Time at Slower Pace

36:58

17% of race

Average Pace: 8:30 /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 mi11:14:4024:057:4524:05
7:45
#14413
10K
6.21 mi11:39:1748:427:5024:37
7:55
#15134
15K
9.32 mi12:04:461:14:117:5825:29
8:12
#16005
20K
12.43 mi12:31:131:40:388:0626:27
8:31
#16667
Half
13.11 mi12:36:521:46:178:065:39
8:17
#16724
25K
15.53 mi12:57:592:07:248:1221:07
8:43
#16969
30K
18.64 mi13:25:432:35:088:1927:44
8:56
#16972
20M
20.00 mi13:38:012:47:268:2212:18
9:03
#16964
21M
21.00 mi13:48:022:57:278:2710:01
10:01
#17017
35K
21.75 mi13:54:163:03:418:276:14
8:20
#16909
23M
23.00 mi14:05:283:14:538:2811:12
8:57
#16839
24M
24.00 mi14:13:543:23:198:288:26
8:26
#16701
40K
24.85 mi14:21:223:30:478:297:28
8:44
#16617
25.2M
25.20 mi14:24:493:34:148:303:27
10:00
#16634
Finish
26.22 mi14:33:373:43:028:318:48
8:38
#16635
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi14413416841681741159605960
10K6.21 mi3.10 mi15134-7214627-4594627-4591586750515051
15K9.32 mi3.11 mi16005-8715151-5245151-5241741159605960
20K12.43 mi3.11 mi16667-6625540-3895540-3891833965276527
Half13.11 mi0.68 mi16724-575576-365576-361785462336233
25K15.53 mi2.42 mi16969-2455742-1665742-1661845166746674
30K18.64 mi3.11 mi16972-35800-585800-581729261836183
20M20.00 mi1.36 mi16964+85818-185818-181708061826182
21M21.00 mi1.00 mi17017-535887-695887-691836369816981
35K21.75 mi0.75 mi16909+1085841+465841+461453849924992
23M23.00 mi1.25 mi16839+705838+35838+31596958695869
24M24.00 mi1.00 mi16701+1385780+585780+581413949054905
40K24.85 mi0.85 mi16617+845762+185762+181484754445444
25.2M25.20 mi0.35 mi16634-175785-235785-231708866266626
Finish26.22 mi1.02 mi16635-15807-225807-221709966046604

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17411

Females

5960

F18-39

5960

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

15867

Females

5051

F18-39

5051

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17411

Females

5960

F18-39

5960

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

18339

Females

6527

F18-39

6527

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

17854

Females

6233

F18-39

6233

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

18451

Females

6674

F18-39

6674

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

17292

Females

6183

F18-39

6183

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

17080

Females

6182

F18-39

6182

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

18363

Females

6981

F18-39

6981

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

14538

Females

4992

F18-39

4992

35K→23M

21.8 - 23.0 mi

Top 56%
×5story building
+23ft-63ft

Overall

15969

Females

5869

F18-39

5869

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

14139

Females

4905

F18-39

4905

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14847

Females

5444

F18-39

5444

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

17088

Females

6626

F18-39

6626

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

17099

Females

6604

F18-39

6604

Passing Analysis

Category:
Athletes Passed
1364
Passed By
3586
Net Change
-2222
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14413
5K → 10K84805-721#14413#15134
10K → 15K52923-871#15134#16005
15K → 20K60722-662#16005#16667
20K → Half2178-57#16667#16724
Half → 25K87332-245#16724#16969
25K → 30K228231-3#16969#16972
30K → 20M9688+8#16972#16964
20M → 21M102155-53#16964#17017
21M → 35K12214+108#17017#16909
35K → 23M13969+70#16909#16839
23M → 24M15416+138#16839#16701
24M → 40K11632+84#16701#16617
40K → 25.2M2744-17#16617#16634
25.2M → Finish7677-1#16634#16635
TOTALS13643586-2222

Passing Charts

Category:
Loading...

Passing Circle

Loading...

Position Flow

Loading...

Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing