Boston Marathon logo
BOSTON MARATHON 2025

Christina Fergus

Bib: 16854•F

WI

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 44%
Masters (Masters Women)
#0 / 6759
Top 31%
Division (F50-54)
#0 / 1303
Top 24%
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
8:30/mi
26:23
↑ 97↓ 3451.5%
10K· 6.21 mi
8:15/mi
52:01
↑ 79↓ 1380.4%
15K· 9.32 mi
8:15/mi
1:17:40
↑ 67↓ 78
20K· 12.43 mi
8:12/mi
1:43:10
↑ 106↓ 860.1%
Half· 13.11 mi
8:07/mi
1:48:42
↑ 19↓ 370.5%
25K· 15.53 mi
8:24/mi
2:09:03
↑ 66↓ 880.2%
30K· 18.64 mi
8:17/mi
2:34:48
↑ 181↓ 1480.2%
20M
8:32/mi
2:46:24
↑ 64↓ 500.2%
21M
9:01/mi
2:55:25
↑ 106↓ 241.6%
35K· 21.75 mi
8:20/mi
3:01:39
↑ 17↓ 861.7%
23M
8:35/mi
3:12:24
↑ 23↓ 630.6%
24M
8:37/mi
3:21:01
↓ 821.3%
40K· 24.85 mi
8:44/mi
3:28:29
↓ 200.3%
25.2M
9:17/mi
3:31:41
↑ 13↓ 160.2%
Finish· 26.22 mi
8:25/mi
3:40:16
↑ 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
Time1:48:42
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time1:51:34
Pace8:31 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:01:3726:238:3026:23
8:30
-
10K
6.21 mi11:27:1552:018:2225:38
8:15
-0:15
15K
9.32 mi11:52:541:17:408:2025:39
8:15
0:00
20K
12.43 mi12:18:241:43:108:1825:30
8:12
-0:03
Half
13.11 mi12:23:561:48:428:175:32
8:07
-0:05
25K
15.53 mi12:44:172:09:038:1820:21
8:24
+0:17
30K
18.64 mi13:10:022:34:488:1825:45
8:17
-0:07
20M
20.00 mi13:21:382:46:248:1911:36
8:32
+0:15
21M
21.00 mi13:30:392:55:258:219:01
9:01
+0:29
35K
21.75 mi13:36:533:01:398:216:14
8:20
-0:41
23M
23.00 mi13:47:383:12:248:2210:45
8:35
+0:15
24M
24.00 mi13:56:153:21:018:238:37
8:37
+0:02
40K
24.85 mi14:03:433:28:298:237:28
8:44
+0:07
25.2M
25.20 mi14:06:553:31:418:243:12
9:17
+0:33
Finish
26.22 mi14:15:303:40:168:248:35
8:25
-0:52

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

8:07 /mi

Average Pace

8:24 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:28:03

94% of race

Time at Steady Pace

12:13

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:24 /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 mi11:01:3726:238:3026:23
8:30
#19834
10K
6.21 mi11:27:1552:018:2225:38
8:15
#19069
15K
9.32 mi11:52:541:17:408:2025:39
8:15
#18600
20K
12.43 mi12:18:241:43:108:1825:30
8:12
#18009
Half
13.11 mi12:23:561:48:428:175:32
8:07
#17930
25K
15.53 mi12:44:172:09:038:1820:21
8:24
#17625
30K
18.64 mi13:10:022:34:488:1825:45
8:17
#16859
20M
20.00 mi13:21:382:46:248:1911:36
8:32
#16637
21M
21.00 mi13:30:392:55:258:219:01
9:01
#16406
35K
21.75 mi13:36:533:01:398:216:14
8:20
#16303
23M
23.00 mi13:47:383:12:248:2210:45
8:35
#16111
24M
24.00 mi13:56:153:21:018:238:37
8:37
#16066
40K
24.85 mi14:03:433:28:298:237:28
8:44
#16002
25.2M
25.20 mi14:06:553:31:418:243:12
9:17
#15946
Finish
26.22 mi14:15:303:40:168:248:35
8:25
#15934
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi198347409740917775(Top 63%)6185(Top 51%)6185(Top 475%)
10K6.21 mi3.10 mi19069+7656942+4676942+46718228(Top 64%)6438(Top 53%)6438(Top 494%)
15K9.32 mi3.11 mi18600+4696676+2666676+26617775(Top 63%)6185(Top 51%)6185(Top 475%)
20K12.43 mi3.11 mi18009+5916340+3366340+33616358(Top 58%)5416(Top 44%)5416(Top 416%)
Half13.11 mi0.68 mi17930+796298+426298+4216721(Top 59%)5596(Top 46%)5596(Top 429%)
25K15.53 mi2.42 mi17625+3056132+1666132+16616540(Top 58%)5602(Top 46%)5602(Top 430%)
30K18.64 mi3.11 mi16859+7665730+4025730+40213444(Top 47%)4084(Top 33%)4084(Top 313%)
20M20.00 mi1.36 mi16637+2225629+1015629+10114035(Top 49%)4538(Top 37%)4538(Top 348%)
21M21.00 mi1.00 mi16406+2315530+995530+9913655(Top 48%)4450(Top 36%)4450(Top 342%)
35K21.75 mi0.75 mi16303+1035491+395491+3914527(Top 51%)4981(Top 41%)4981(Top 382%)
23M23.00 mi1.25 mi16111+1925420+715420+7113865(Top 49%)4737(Top 39%)4737(Top 364%)
24M24.00 mi1.00 mi16066+455417+35417+315280(Top 54%)5530(Top 45%)5530(Top 424%)
40K24.85 mi0.85 mi16002+645405+125405+1214834(Top 52%)5431(Top 44%)5431(Top 417%)
25.2M25.20 mi0.35 mi15946+565388+175388+1713430(Top 47%)4739(Top 39%)4739(Top 364%)
Finish26.22 mi1.02 mi15934+125394-65394-615751(Top 55%)5883(Top 48%)5883(Top 451%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

17775

Females

6185

F50-54

6185

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

18228

Females

6438

F50-54

6438

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

17775

Females

6185

F50-54

6185

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

16358

Females

5416

F50-54

5416

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

16721

Females

5596

F50-54

5596

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

16540

Females

5602

F50-54

5602

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

13444

Females

4084

F50-54

4084

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

14035

Females

4538

F50-54

4538

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

13655

Females

4450

F50-54

4450

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

14527

Females

4981

F50-54

4981

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

13865

Females

4737

F50-54

4737

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

15280

Females

5530

F50-54

5530

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14834

Females

5431

F50-54

5431

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13430

Females

4739

F50-54

4739

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

15751

Females

5883

F50-54

5883

Passing Analysis

Category:
Athletes Passed
4264
Passed By
364
Net Change
+3900
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19834
5K → 10K83469+765#19834#19069
10K → 15K50233+469#19069#18600
15K → 20K60211+591#18600#18009
20K → Half867+79#18009#17930
Half → 25K33631+305#17930#17625
25K → 30K7704+766#17625#16859
30K → 20M23715+222#16859#16637
20M → 21M24110+231#16637#16406
21M → 35K11815+103#16406#16303
35K → 23M21018+192#16303#16111
23M → 24M8641+45#16111#16066
24M → 40K9834+64#16066#16002
40K → 25.2M6711+56#16002#15946
25.2M → Finish7765+12#15946#15934
TOTALS4264364+3900
📊

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