Boston Marathon logo
BOSTON MARATHON 2025

Ellen Flood

Bib: 1563•F

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 9%
Gender (Female)
#0 / 12228
Top 1%
Division (F18-39)
#0 / 5469
Top 2%
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
6:19/mi
19:37
↑ 97↓ 3451.5%
10K· 6.21 mi
6:19/mi
39:16
↑ 79↓ 1380.4%
15K· 9.32 mi
6:19/mi
58:53
↑ 67↓ 78
20K· 12.43 mi
6:22/mi
1:18:39
↑ 106↓ 860.1%
Half· 13.11 mi
6:21/mi
1:22:59
↑ 19↓ 370.5%
25K· 15.53 mi
6:35/mi
1:38:57
↑ 66↓ 880.2%
30K· 18.64 mi
6:47/mi
2:00:03
↑ 181↓ 1480.2%
20M
6:51/mi
2:09:22
↑ 64↓ 500.2%
21M
7:05/mi
2:16:27
↑ 106↓ 241.6%
35K· 21.75 mi
6:32/mi
2:21:20
↑ 17↓ 861.7%
23M
6:49/mi
2:29:52
↑ 23↓ 630.6%
24M
6:33/mi
2:36:25
↓ 821.3%
40K· 24.85 mi
6:46/mi
2:42:12
↓ 200.3%
25.2M
7:18/mi
2:44:43
↑ 13↓ 160.2%
Finish· 26.22 mi
6:33/mi
2:51:23
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:59
Pace6:20 /mi
2nd Half
Distance13.11 mi
Time1:28:24
Pace6:45 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1019:376:1919:37
6:19
-
10K
6.21 mi10:39:4939:166:1919:39
6:19
0:00
15K
9.32 mi10:59:2658:536:1919:37
6:19
0:00
20K
12.43 mi11:19:121:18:396:2019:46
6:22
+0:03
Half
13.11 mi11:23:321:22:596:204:20
6:21
-0:01
25K
15.53 mi11:39:301:38:576:2215:58
6:35
+0:14
30K
18.64 mi12:00:362:00:036:2621:06
6:47
+0:12
20M
20.00 mi12:09:552:09:226:289:19
6:51
+0:04
21M
21.00 mi12:17:002:16:276:307:05
7:05
+0:14
35K
21.75 mi12:21:532:21:206:304:53
6:32
-0:33
23M
23.00 mi12:30:252:29:526:318:32
6:49
+0:17
24M
24.00 mi12:36:582:36:256:316:33
6:33
-0:16
40K
24.85 mi12:42:452:42:126:325:47
6:46
+0:13
25.2M
25.20 mi12:45:162:44:436:322:31
7:18
+0:32
Finish
26.22 mi12:51:562:51:236:326:40
6:33
-0:45

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

6:19 /mi

Average Pace

6:32 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:47

94% of race

Time at Steady Pace

9:36

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:32 /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 mi10:20:1019:376:1919:37
6:19
#2537
10K
6.21 mi10:39:4939:166:1919:39
6:19
#2558
15K
9.32 mi10:59:2658:536:1919:37
6:19
#2495
20K
12.43 mi11:19:121:18:396:2019:46
6:22
#2430
Half
13.11 mi11:23:321:22:596:204:20
6:21
#2445
25K
15.53 mi11:39:301:38:576:2215:58
6:35
#2576
30K
18.64 mi12:00:362:00:036:2621:06
6:47
#2673
20M
20.00 mi12:09:552:09:226:289:19
6:51
#2683
21M
21.00 mi12:17:002:16:276:307:05
7:05
#2657
35K
21.75 mi12:21:532:21:206:304:53
6:32
#2635
23M
23.00 mi12:30:252:29:526:318:32
6:49
#2608
24M
24.00 mi12:36:582:36:256:316:33
6:33
#2563
40K
24.85 mi12:42:452:42:126:325:47
6:46
#2535
25.2M
25.20 mi12:45:162:44:436:322:31
7:18
#2520
Finish
26.22 mi12:51:562:51:236:326:40
6:33
#2513
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25371131132433(Top 9%)104(Top 0.9%)104(Top 2%)
10K6.21 mi3.10 mi2558-21115-2115-22589(Top 9%)114(Top 0.9%)114(Top 2%)
15K9.32 mi3.11 mi2495+63108+7108+72433(Top 9%)104(Top 0.9%)104(Top 2%)
20K12.43 mi3.11 mi2430+65105+3105+32337(Top 8%)103(Top 0.8%)103(Top 2%)
Half13.11 mi0.68 mi2445-151051052853(Top 10%)118(Top 1.0%)118(Top 2%)
25K15.53 mi2.42 mi2576-131110-5110-53384(Top 12%)179(Top 1%)179(Top 3%)
30K18.64 mi3.11 mi2673-97115-5115-53401(Top 12%)218(Top 2%)218(Top 4%)
20M20.00 mi1.36 mi2683-10121-6121-63272(Top 12%)234(Top 2%)234(Top 4%)
21M21.00 mi1.00 mi2657+26120+1120+12636(Top 9%)172(Top 1%)172(Top 3%)
35K21.75 mi0.75 mi2635+22119+1119+12649(Top 9%)174(Top 1%)174(Top 3%)
23M23.00 mi1.25 mi2608+27122-3122-32808(Top 10%)218(Top 2%)218(Top 4%)
24M24.00 mi1.00 mi2563+45126-4126-42292(Top 8%)164(Top 1%)164(Top 3%)
40K24.85 mi0.85 mi2535+28124+2124+22710(Top 10%)234(Top 2%)234(Top 4%)
25.2M25.20 mi0.35 mi2520+151241242600(Top 9%)262(Top 2%)262(Top 5%)
Finish26.22 mi1.02 mi2513+7125-1125-13044(Top 11%)322(Top 3%)322(Top 6%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21story building
+97ft-345ft

Overall

2433

Females

104

F18-39

104

5K→10K

3.1 - 6.2 mi

Top 9%
×5story building
+79ft-138ft

Overall

2589

Females

114

F18-39

114

10K→15K

6.2 - 9.3 mi

Top 9%
×3story building
+67ft-78ft

Overall

2433

Females

104

F18-39

104

15K→20K

9.3 - 12.4 mi

Top 8%
×5story building
+106ft-86ft

Overall

2337

Females

103

F18-39

103

20K→Half

12.4 - 13.1 mi

Top 10%
×2story building
+19ft-37ft

Overall

2853

Females

118

F18-39

118

Half→25K

13.1 - 15.5 mi

Top 12%
×4story building
+66ft-88ft

Overall

3384

Females

179

F18-39

179

25K→30K

15.5 - 18.6 mi

Top 12%
×9story building
+181ft-148ft

Overall

3401

Females

218

F18-39

218

30K→20M

18.6 - 20.0 mi

Top 12%
×5story building
+64ft-50ft

Overall

3272

Females

234

F18-39

234

20M→21M

20.0 - 21.0 mi

Top 9%
×8story building
+106ft-24ft

Overall

2636

Females

172

F18-39

172

21M→35K

21.0 - 21.8 mi

Top 9%
×7story building
+17ft-86ft

Overall

2649

Females

174

F18-39

174

35K→23M

21.8 - 23.0 mi

Top 10%
×5story building
+23ft-63ft

Overall

2808

Females

218

F18-39

218

23M→24M

23.0 - 24.0 mi

Top 8%
×6story building
+12ft-82ft

Overall

2292

Females

164

F18-39

164

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2710

Females

234

F18-39

234

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2600

Females

262

F18-39

262

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2story building
+22ft-21ft

Overall

3044

Females

322

F18-39

322

Passing Analysis

Category:
Athletes Passed
813
Passed By
789
Net Change
+24
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2537
5K → 10K105126-21#2537#2558
10K → 15K11855+63#2558#2495
15K → 20K10540+65#2495#2430
20K → Half1025-15#2430#2445
Half → 25K27158-131#2445#2576
25K → 30K55152-97#2576#2673
30K → 20M5363-10#2673#2683
20M → 21M6741+26#2683#2657
21M → 35K4119+22#2657#2635
35K → 23M6235+27#2635#2608
23M → 24M6520+45#2608#2563
24M → 40K4517+28#2563#2535
40K → 25.2M205+15#2535#2520
25.2M → Finish4033+7#2520#2513
TOTALS813789+24
📊

Passing Visuals

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